R1 : 
for $x in doc("sortiexml-slurp_3208.xml")//item
let $titre := $x/titre/article/element/data[3]/text()
let $titre := string-join($tkitre, ' ')
return ($titre, "
")

R2 : 
for $x in doc("sortiexml-slurp_3208.xml")//item
let $description := $x/description/article/element/data[3]/text()
let $description := string-join($description, ' ')
return ($description, "
")

R3:
for $x in doc("sortiexml-slurp_3208.xml")//item
let $titre := $x/titre/article/element/data[3]/text()
let $titre := string-join($titre, ' ')
let $description := $x/description/article/element/data[3]/text()
let $description := string-join($description, ' ')
return ($titre,$description, "
")

R4 : 
for $x in doc("sortiexml-slurp_3208.xml")//item//article/element
where $x/data[1]="NOM"
where $x/following-sibling::*[1]/data[1]="ADJ" 
return concat( $x/data[3], " ", $x/following-sibling::*[1]/data[3])


R5 : 
for $x in doc("sortiexml-slurp_3208.xml")//item//article/element
where $x/data[1]="NOM"
where $x/following-sibling::*[1]/data[1]="PRP" 
where $x/following-sibling::*[2]/data[1]="NOM"
return concat( $x/data[3], " ", $x/following-sibling::*[1]/data[3], " ", $x/following-sibling::*[2]/data[3] )