for $element in collection(BAO3_Pl_Tree_tagger3210)//element
let $frere:=$element/following-sibling::element[1]
let $frere2:=$element/following-sibling::element[2]
where (($element/data[1]/contains(text(),"VERB")) and ($frere/data[1]/contains(text(),"ADP")) and ($frere2/data[1]/contains(text(),"VERB")))
return string-join(($element/data[3], $frere/data[3], $frere2/data[3])," ")