XML for Beginners

7/21/2019 XML for Beginners

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XML for BeginnersRalf Schenkel

1. XML – the Snake Oil of the Internet age?

2. Basic XML Concepts

3. Defining XML Data or!ats

". #$er%ing XML Data



Snake Oil?

Snake Oil i! the all"c#ring dr#g the!e !trange g#$! in

wild"we!t mo%ie! !ell, tra%elling from town to town, &#t%i!iting each town onl$ once'

(oogle) *!na+e oil -ml⇒ !ome 2000 hit!

*XML re%ol#tionize! !oftware de%elopment *XML i! the all"healing, world"peace ind#cing tool for

comp#ter proce!!ing

*XML ena&le! application porta&ilit$

*.orget the /e&, XML i! the new wa$ to &#!ine!! *XML i! the c#re for $o#r data e-change, information

integration, data e-change, -"2"$, $o# name it pro&lem!

*XML, the Mother of all /e& Application na&ler!

*XML ha! &een the &e!t in%ention !ince !liced &read



XML is not…

A replacement for HTML

&#t 45ML can &e generated from XML6 A presentation format

&#t XML can &e con%erted into one6

A programming language&#t it can &e #!ed with almo!t an$ lang#age6

A network transfer protocol

&#t XML ma$ &e tran!ferred o%er a networ+6

A database

&#t XML ma$ &e !tored into a data&a!e6



But then – what is it?

XML is a meta markup languagefor text documents / textual data

XML allows to define languages

(„applications“ to represent textdocuments / textual data



XML by Exa!le

<article>

<author>Gerhard Weikum</author>

<title>The Web in 10 Years</title>

</article>

a!$ to #nder!tand for h#man #!er!

er$ e-pre!!i%e !emantic! along with the data6

/ell !tr#ct#red, ea!$ to read and write from program!

5hi! loo+! nice, &#t:



XML by Exa!le

<t108> <x87>Gerhard Weikum</x87>

<g10>The Web in 10 Years</g10>

</t108>

4ard to #nder!tand for h#man #!er!

<ot e-pre!!i%e no !emantic! along with the data6

/ell !tr#ct#red, ea!$ to read and write from program!

: thi! i! XML, too)



XML by Exa!le

<data> ch37hgks73!"m#$d%3h"mgkds8d$8&lgnsmcns$83

</data>

Impo!!i&le to #nder!tand for h#man #!er! <ot e-pre!!i%e no !emantic! along with the data6

>n!tr#ct#red, read and write onl$ with !pecial program!

: and what a&o#t thi! XML doc#ment)

5he act#al &enefit of #!ing XML highl$ depend!

on the de!ign of the application'



"ossible #$%antages of &sing XML

5r#l$ @orta&le ata

a!il$ reada&le &$ h#man #!er!

er$ e-pre!!i%e !emantic! near data6

er$ fle-i&le and c#!tomiza&le no finite tag !et6

a!$ to #!e from program! li&! a%aila&le6

a!$ to con%ert into other repre!entation!

XML tran!formation lang#age!6 Man$ additional !tandard! and tool!

/idel$ #!ed and !#pported



#!!' Scenario () *ontent Mgt'

ata&a!e with

XML doc#ment!

Blient!

Bon%erter!XML245ML XML2/ML XML2@.

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#!!' Scenario +) ,ata Exchange

Legac$

S$!tem

e'g', SA@

CD26

Legac$

S$!tem

e'g',

Bo&ol6

XML

Adapter XML

Adapter

XML

EMBat, e&XML, Co!etta<et, Eiz5al+, :6

SE#$er

Order



#!!' Scenario -) XML for Meta$ata <rd'()*

<rd')escri+tion rd'about,-htt+'//...dbs/ch03+d->

<dc'title>2 *rame.ork or</dc'title> <dc'creator>(al chenkel</dc'creator>

<dc'descri+tion>While there are</dc'descri+tion>

<dc'+ublisher>aarland 4ni#ersit5</dc'+ublisher>

<dc'sub!ect>6 9ndexing</dc'sub!ect>

<dc'rights>:o+5right </dc'rights> <dc't5+e>;lectronic )ocument</dc't5+e>

<dc'ormat>text/+d</dc'ormat>

<dc'language>en</dc'language>

</rd')escri+tion>

</rd'()*>



#!!' Scenario .) ,ocuent Marku! <article>

<section id,1= title,9ntro=>

This article is about <index>6</index>

</section>

<section id,= title,ain (esults=>

<name>Weikum</name> <cite idre,Weik01=/> sho.s

the ollo.ing theorem ?see ection <re idre,1=/>@ <theorem id,theo'1= source,Weik01=>

*or an5 6 document xA

</theorem>

</section> <literature>

<cite id,Weik01=><author>Weikum</author></cite>

</literature>

</article>



#!!' Scenario .) ,ocuent Marku!

oc#ment Mar+#p add! !tr#ct#ral and !emantic

information to doc#ment!, e'g' F Section!, S#&!ection!, 5heorem!, :

F Bro!! Ceference!

F Literat#re Bitation!

F Inde- ntrie!

F <amed ntitie!

5hi! allow! G#erie! li+e

F /hich article! cite /ei+#mH! XML paper from 2001 F /hich article! tal+ a&o#t the named entit$6 */ei+#m



XML for Beginners

"art + – Basic XML *once!ts

2.1 XML Stan&ar&s '% the (3C

2.2 XML Doc$!ents2.3 )a!espaces



+'( XML Stan$ar$s – an O%er%iew XML Bore /or+ing (ro#p)

F XML 1'0 .e& 199?6, 1'1 candidate for recommendation6

F XML <ame!pace! Jan 19996

F XML Incl#!ion candidate for recommendation6

XSL5 /or+ing (ro#p)

F XSL 5ran!formation! 1'0 <o% 19996, 2'0 planned

F X@ath 1'0 <o% 19996, 2'0 planned

F eXten!i&le St$le!heet Lang#age XSL".O6 1'0 Oct 20016

XML Lin+ing /or+ing (ro#p)

F XLin+ 1'0 J#n 20016

F X@ointer 1'0 March 2003, 3 !#&!tandard!6

XK#er$ 1'0 <o% 20026 pl#! man$ !#&!tandard!

XMLSchema 1'0 Ma$ 20016

:



+'+ XML ,ocuents

/hatH! in an XML doc#ment

lement! Attri&#te!

pl#! !ome other detail!

!ee the Lect#re if $o# want to +now thi!6



# Si!le XML ,ocuent

<article>

<author>Gerhard Weikum</author> <title>The Web in Ten Years</title>

<text>

<abstract>9n order to e#ol#e</abstract>

<section number,=1B title,=9ntroductionB>

The <index>Web</index> +ro#ides the uni#ersal

</section>

</text>

</article>



# Si!le XML ,ocuent

<article>


<text>




</section>

</text>

</article>

!reel" definable tags



#lement

$ontent of

t%e #lement

(&ubelements

and/or Text

# Si!le XML ,ocuent

<article>


<text>




</section>

</text>

</article>

#nd Tag

&tart Tag



# Si!le XML ,ocuent

<article>


<text>




</section>

</text>

</article>

Attributes withname and 'alue



Eleents in XML ,ocuents .reel$ defina&le6 tags) article, title, author

F with !tart tag) <article>

etc'

F and end tag) </article> etc'

#lements) <article> </article>

lement! ha%e a name article6 and a content 6

lement! ma$ &e ne!ted' lement! ma$ &e empt$) <thisCisCem+t5/>

lement content i! t$picall$ par!ed character data @BA5A6,

i'e', !tring! with !pecial character!, andDor ne!ted element! !i*e&

content if &oth6' ach XML doc#ment ha! e-actl$ one root element and form! a

tree'

lement! with a common parent are ordered'



Eleents %s' #ttributeslement! ma$ ha%e attributes in the !tart tag6 that ha%e a name and

a 'alue, e'g' <section number,=1=> '/hat i! the difference &etween element! and attri&#te!

Onl$ one attri&#te with a gi%en name per element &#t an ar&itrar$

n#m&er of !#&element!6

Attri&#te! ha%e no !tr#ct#re, !impl$ !tring! while element! canha%e !#&element!6

A! a r$le of th$!')

Bontent into element!

Metadata into attri&#te!

-ample)

<+erson born,=1$10%3= died,=1$"&0%07=>

2lan Turing</+erson> +ro#ed that



XML ,ocuents as Or$ere$ /rees

article

author title text

sectionabstract

5he index

/e&

pro%ide! :

title,==

number,=1=

In order :

(erhard

/ei+#m

5he /e&

in 10 $ear!



More on XML Syntax

Some !pecial character! m#!t &e e!caped #!ing entities

< DltED Dam+E

will &e con%erted &ac+ when reading the XML doc6

Some other character! ma$ &e e!caped, too)

> DgtE

= DFuotE

Da+osE



0ell12ore$ XML ,ocuents

A well)formed doc#ment m#!t adher to, among other!, the

following r#le!) %er$ !tart tag ha! a matching end tag'

lement! ma$ ne!t, &#t m#!t not o%erlap'

5here m#!t &e e-actl$ one root element'

Attri&#te %al#e! m#!t &e G#oted'

An element ma$ not ha%e two attri&#te! with the !amename'

Bomment! and proce!!ing in!tr#ction! ma$ not appearin!ide tag!'

<o #ne!caped < or D !ign! ma$ occ#r in!ide characterdata'



0ell12ore$ XML ,ocuents

A well)formed doc#ment m#!t adher to, among other!, the

following r#le!) %er$ !tart tag ha! a matching end tag'

lement! ma$ ne!t, &#t m#!t not o%erlap'

5here m#!t &e e-actl$ one root element'

Attri&#te %al#e! m#!t &e G#oted'

An element ma$ not ha%e to attri&#te! with the !amename'

Bomment! and proce!!ing in!tr#ction! ma$ not appearin!ide tag!'

<o #ne!caped < or D !ign! ma$ occ#r in!ide characterdata'

*nl" well)formed documentscan be processed b" XML

parsers+



+'- 3aes!aces <librar5>

<descri+tion>ibrar5 o the : )e+artment</descri+tion>

<book bid,=Hand000=>

<title>Irinci+les o )ata ining</title>

<descri+tion>

hort introduction to <em>data mining</em>A useul

or the 9() course </descri+tion>

</book>

</librar5>

&emantics of t%e descri+tion element is ambigous$ontent ma" be defined differentl"

,enaming ma" be impossible (standards-

⇒ i!am&ig#ation of !eparate XML application! #!ing

#niG#e prefi-e!



3aes!ace Syntax <dbs'book xmlns'dbs,=htt+'//...dbs/dbs=>

.niue .,0 to identif"

t%e namespaceSignal that name!pace

definition happen!

1refix as abbre'ation

of .,0



3aes!ace Exa!le <dbs'book xmlns'dbs,=htt+'//...dbs/dbs=>

<dbs'descri+tion> </dbs'descri+tion>

<dbs'text>

<dbs'ormula>

<mathml'mathxmlns'mathml,=htt+'//....3org/1$$8/ath/ath=>

</mathml'math>

</dbs'ormula>

</dbs'text>

</dbs'book>



,efault 3aes!ace

efa#lt name!pace ma$ &e !et for an element and it!

content &#t not it! attri&#te!6) <book xmlns,=htt+'//...dbs/dbs=>

<descri+tion></descri+tion>

<book>

Ban &e o%erridden in the element! &$ !pecif$ing thename!pace there #!ing prefi- or defa#lt name!pace6



XML for Beginners

"art - – ,efining XML ,ata 2orats

3.1 Doc$!ent +%pe Definitions

3.2 XML Sche!a ,-er% short

- ( , t / , fi iti



-'( ,ocuent /y!e ,efinitions

Sometime! XML i! too fle-i&le)

Mo!t @rogram! can onl$ proce!! a !#&!et of all po!!i&leXML application!

.or e-changing data, the format i'e', element!,

attri&#te! and their !emantic!6 m#!t &e fi-ed

⇒2ocument T"pe 2efinitions 2T26 for e!ta&li!hing the

%oca&#lar$ for one XML application in !ome !en!e

compara&le to sche!as in data&a!e!6

A doc#ment i! 'alid wit% respect to a 2T2 if it conform!to the r#le! !pecified in that 5'

Mo!t XML par!er! can &e config#red to %alidate'

,/, E l El t



,/, Exa!le) Eleents <J;;;KT article ?titleAauthorLAtext@>

<J;;;KT title ?MI:)2T2@>

<J;;;KT author ?MI:)2T2@>

<J;;;KT text ?abstractAsectionNAliteratureO@>

<J;;;KT abstract ?MI:)2T2@>

<J;;;KT section ?MI:)2T2Pindex@L>

<J;;;KT literature ?MI:)2T2@> <J;;;KT index ?MI:)2T2@>

$ontent of t%e title element

is parsed c%aracter data

$ontent of t%e article element is a title element3

followed b" one or more author elements3

followed b" a text element

$ontent of t%e text element ma"

contain 4ero or more section

elements in t%is position

El t , l ti i ,/,



Eleent ,eclarations in ,/,sOne element declaration for each element t$pe)

<J;;;KT elementCname contentCs+eciication>

where contentCs+eciication can &e

• ?MI:)2T2@ par!ed character data

• ?child@ one child element

•

?c1AAcn@ a !eG#ence of child element! c1:cn• ?c1PPcn@ one of the element! c1:cn

.or each component c, po!!i&le co#nt! can &e !pecified)

F c e-actl$ one !#ch element

F c one or more F cN zero or more

F c zero or one

@l#! ar&itrar$ com&ination! #!ing parenthe!i!)

<J;;;KT ??aPb@NAcLA?dPe@@N>

M El t , l ti



More on Eleent ,eclarations

lement! with mi-ed content)

<J;;;KT text ?MI:)2T2PindexPcitePglossar5@N> lement! with empt$ content) <J;;;KT image ;ITY>

lement! with ar&itrar$ content thi! i! nothing for

prod#ction"le%el 5!6) <J;;;KT thesis 2KY>

#tt ib t , l ti i ,/,



#ttribute ,eclarations in ,/,s

Attri&#te! are declared per element)

<J2TT9T section number :)2T2 M(;Q49(;) title :)2T2 M(;Q49(;)>

declare! two reG#ired attri&#te! for element section'

element name

attribute name

attribute t"pe

attribute default

#tt ib t , l ti i ,/,



#ttribute ,eclarations in ,/,s

Attri&#te! are declared per element)

<J2TT9T section number :)2T2 M(;Q49(;) title :)2T2 M(;Q49(;)>

declare! two reG#ired attri&#te! for element section'

@o!!i&le attri&#te defa#lt!)

• M(;Q49(;) i! reG#ired in each element in!tance

• M9I9;) i! optional

• M*96;) deault alwa$! ha! thi! defa#lt %al#e• deault ha! thi! defa#lt %al#e if the attri&#te i!

omitted from the element in!tance

#tt ib t / i ,/,



#ttribute /y!es in ,/,s• :)2T2 !tring data

•

?21PP2n@ en#meration of all po!!i&le %al#e! of theattri&#te each i! XML name6

• 9) #niG#e XML name to identif$ the element

•

9)(;* refer! to 9) attri&#te of !ome other element*intra"doc#ment lin+6

• 9)(;* li!t of 9)(;*, !eparated &$ white !pace

pl#! !ome more

#tt ib t E l



#ttribute Exa!les <2TT9T +ublication t5+e ?!ournalPin+roceedings@ M(;Q49(;)

+ubid 9) M(;Q49(;)>

<2TT9T cite cid 9)(;* M(;Q49(;)> <2TT9T citation re 9)(;* M9I9;)

cid 9) M(;Q49(;)>

<+ublications>

<+ublication t5+e,=!ournal= +ubid,=Weikum01=>


<text>9n the Web o 010A 6 <cite cid,1=/></text>

<citation cid,1= re,6$8=/>

<citation cid,1"=></citation>

</+ublication>

<+ublication t5+e,=in+roceedings= +ubid,=6$8=>

<text>6A the extended arku+ anguageA </text>

</+ublication>

</+ublications>

#tt ib t E l



#ttribute Exa!les <2TT9T +ublication t5+e ?!ournalPin+roceedings@ M(;Q49(;)

+ubid 9) M(;Q49(;)>

<2TT9T cite cid 9)(;* M(;Q49(;)> <2TT9T citation re 9)(;* M9I9;)

cid 9) M(;Q49(;)>

<+ublications>

<+ublication t5+e,=!ournal= +ubid,=Weikum01=>


<text>9n the Web o 010A 6 <cite cid,1=/></text>

<citation cid,1= re,6$8=/>

<citation cid,1"=></citation>

</+ublication>

<+ublication t5+e,=in+roceedings= +ubid,=6$8=>

<text>6A the extended arku+ anguageA </text>

</+ublication>

</+ublications>

Li ki ,/, $ XML ,



Linking ,/, an$ XML ,ocs

oc#ment 5$pe eclaration in the XML doc#ment)

<J)R:TYI; article YT; =htt+'//...dbs/articledtd=>

ke"words ,oot element .,0 for t%e 2T2





Internal 5)

<Oxml #ersion,=10=O> <J)R:TYI; article S

<J;;;KT article ?titleAauthorLAtext@>

<J;;;KT index ?MI:)2T2@>

>

<article>

</article>

Eoth wa$! can &e mi-ed, internal 5 o%erwrite!e-ternal entit$ information) <J)R:TYI; article YT; articledtd= S

<J;KT9TY U +ubCcontent ?titleLAauthorNAtext@

>

2laws of ,/,s



2laws of ,/,s

<o !#pport for &a!ic data t$pe! li+e integer!, do#&le!,

date!, time!, : <o !tr#ct#red, !elf"defina&le data t$pe!

<o t$pe deri%ation

idDidref lin+! are G#ite loo!e target i! not !pecified6

⇒ XML Schema

- + XML Schea Basics



-'+ XML Schea Basics

XML Schema i! an XML application

@ro%ide! !imple t$pe! !tring, integer, date5ime,d#ration, lang#age, :6

Allow! defining po!!i&le %al#e! for element!

Allow! defining t$pe! deri%ed from e-i!ting t$pe!

Allow! defining comple- t$pe!

Allow! po!ing con!traint! on the occ#rrence of element!

Allow! forcing #niG#ene!! and foreign +e$!

/a$ too comple- to co%er in an introd#ctor$ tal+

Si!lifie$ XML Schea Exa!le



Si!lifie$ XML Schea Exa!le <xs'schema>

<xs'element name,=article=>

<xs'com+lexT5+e> <xs'seFuence>

<xs'element name,=author= t5+e,=xs'string=/>

<xs'element name,=title= t5+e,=xs'string=/>

<xs'element name,=text=>

<xs'com+lexT5+e>

<xs'seFuence>

<xs'element name,=abstract= t5+e,=xs'string=/>

<xs'element name,=section= t5+e,=xs'string=

minRccurs,=0= maxRccurs,=unbounded=/>

</xs'seFuence>

</xs'com+lexT5+e> </xs'element>

</xs'seFuence>

</xs'com+lexT5+e>

</xs'element>

</xs'schema>



XML for Beginners

"art . – 4uerying XML ,ata

".1 X/ath

".2 X#$er%

4uerying XML with X"ath an$ X4uery



4uerying XML with X"ath an$ X4uery

X@ath and XK#er$ are G#er$ lang#age! for XML data, &oth

!tandardized &$ the /3B and !#pported &$ %ario#! data&a!e prod#ct!'

5heir !earch capa&ilitie! incl#de logical conditions o%er element and attri&#te content

fir!t"order predicate logic a la SKL !imple condition! onl$ in X@ath6 regular expressions for pattern matching of element name!

along path! or !#&tree! within XML data Poin!, gro#ping, aggregation, tran!formation, etc' XK#er$ onl$6

In contra!t to data&a!e G#er$ lang#age! li+e SKL an XML G#er$

doe! not nece!!aril$ need to6 +now a fi-ed !tr#ct#ral !chemafor the #nderl$ing data'A uer" result i! a !et of G#alif$ing node!, path!, !#&tree!,or !#&graph! from the #nder$ling data graph,or a !et of XML doc#ment! con!tr#cted from thi! raw re!#lt'

. ( X"ath



.'( X"ath

X@ath i! a !imple lang#age to identif$ part! of the XML

doc#ment for f#rther proce!!ing6 X@ath operate! on the tree repre!entation of the

doc#ment

Ce!#lt of an X@ath e-pre!!ion i! a !et of element! or

attri&#te!

i!c#!! a&&re%iated %er!ion of X@ath

Eleents of X"ath



Eleents of X"ath

An X@ath e-pre!!ion #!#all$ i! a location pat% that

con!i!t! of location steps, !eparated &$ /)/article/text/abstract) !elect! all abstract element!

A leading / alwa$! mean! the root element

ach location !tep i! e%al#ated in the conte-t of a node

in the tree, the !o"called context node

@o!!i&le location !tep!)

F child element x) !elect all child element! with name x

F Attri&#te Vx) !elect all attri&#te! with name x F /ildcard! N an$ child6, VN an$ attri&#te6

F M#ltiple matche!, !eparated &$ P) xP5P

*obining Location Ste!s



*obining Location Ste!s

Standard) / conte-t node i! the re!#lt of the preceding

location !tep6article/text/abstract all the a&!tract node! of article!6

Select an$ de!cendant, not onl$ children) //

article//index an$ inde- element in article!6

Select the parent element)

Select the content node)

5he latter two are important when #!ing predicates'

"re$icates in Location Ste!s



"re$icates in Location Ste!s

Added with S to the location !tep

>!ed to re!trict! element! that G#alif$ a! re!#lt of alocation !tep to tho!e that f#lfil the predicate)– aSb element! a that ha%e a !#&element b

– aSVd element! a that ha%e an attri&#te d

F @l#! condition! on contentD%al#e)• aSb,c=

• 2SVd>7

• <A <,A >,A J,A

X"ath by Exa!le



X"ath by Exa!le

Dliterat#reD&oo+Da#thor retrie%e! all &oo+ a#thor!)!tarting with the root, tra%er!e! the tree, matche! element

name! literat#re, &oo+, a#thor, and ret#rn! element!Qa#thorRS#ci#, anQDa#thorR,Qa#thorRA&ite&o#l, SergeQDa#thorR, ''',Qa#thorRQfir!tnameRJeffQDfir!tnameR Qla!tnameR>llmanQDla!tnameRQDa#thorR

Dliterat#reDNDa#thor a#thor! of &oo+!, article!, e!!a$!, etc'

Dliterat#reDDa#thor a#thor! that are de!cendant! of literat#re

Dliterat#reDD$ear %al#e of the $ear attri&#te of de!cendant! of literat#re

Dliterat#reDDa#thorfir!tname a#thor! that ha%e a !#&element fir!tname

Dliterat#reD&oo+Tarticle6Da#thor a#thor! of &oo+! or article!

Dliterat#reD&oo+price Q *80

Dliterat#reD&oo+a#thorDDco#ntr$ U *(erman$

low priced &oo+!

&oo+! with (erman a#thor

. + *ore *once!ts of X4uery



.'+ *ore *once!ts of X4ueryXK#er$ i! an e-tremel$ powerf#l G#er$ lang#age for XML data'A G#er$ ha! the form of a !o"called .L/C e-pre!!ion)

*R( X#ar1 9K ex+r1A X#ar 9K ex+rA ;T X#ar3 ', ex+r3A X#ar& ', ex+r&A

WH;(; condition(;T4(K resultdocconstruction

5he .OC cla#!e e%al#ate! e-pre!!ion! which ma$ &e X@ath"!t$le path e-pre!!ion!6 and &ind! the re!#lting element! to %aria&le!'.or a gi%en &inding each %aria&le denote! e-actl$ one element'

5he L5 cla#!e &ind! entire !eG#ence! of element! to %aria&le!'

5he /4C cla#!e e%al#ate! a logical condition with each of the po!!i&le %aria&le &inding! and !elect! tho!e &inding! that!ati!f$ the condition'

5he C5>C< cla#!e con!tr#ct!, from each of the %aria&le &inding!,an XML re!#lt tree' 5hi! ma$ in%ol%e gro#ping and aggregation

and e%en complete !#&G#erie!'

X4uery Exa!les



X4uery Exa!les // find Web-related articles by Dan Suciu from the year 1998

<results> *R( Xa 9K document?=literaturexml=@//article *R( Xn 9K Xa//authorA Xt 9K Xa/title WH;(; Xa/V5ear , =1$$8=

2K) contains?XnA =uciu=@ 2K) contains?XtA =Web=@(;T4(K <result> Xn Xt </result> Z </results>

// find articles co-authored by authors who have jointly written a book after 1995

<results> *R( Xa 9K document?=literaturexml=@//article *R( Xa1 9K Xa//authorA Xa 9K Xa//author

WH;(; R; Xb 9K document?=literaturexml=@// book 2T9*9; Xb//author , Xa1 2K) Xb//author , Xa 2K)

Xb/V5ear>=1$$"= (;T4(K <result> Xa1 Xa < .rote> Xa </ .rote> </result> Z

</results>

Suary an$ Outlook



Suary an$ Outlook

Vo# !ho#ld gi%e one, I wonHt'

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