X seq-queries-results-q1:

for $s in //section[section.title = "Procedure"] return ($s//incision)[2]/instrument

 X seq-queries-results-q2:

for $s in //section[section.title = "Procedure"] return ($s//instrument)[position()<=2]

 X seq-queries-results-q3:

let $i2 := (//incision)[2] for $a in (//action)[. >> $i2][position()<=2] return $a//instrument

 X seq-queries-results-q4:

for $p in //section[section.title = "Procedure"] where not(some $a in $p//anesthesia satisfies $a << ($p//incision)[1] ) return $p

 X seq-queries-results-q5:

<critical_sequence> { let $proc := //section[section.title="Procedure"][1], $i1 := ($proc//incision)[1], $i2 := ($proc//incision)[2] for $n in $proc//node() except $i1//node() where $n >> $i1 and $n << $i2 return $n } </critical_sequence>