This relation is a language-specific subtype of aux.
2234 nodes (1%) are attached to their parents as aux:pass.
2231 instances of aux:pass (100%) are right-to-left (child precedes parent).
Average distance between parent and child is 1.16427931960609.
The following 4 pairs of parts of speech are connected with aux:pass: VERB-AUX (2216; 99% instances), NOUN-AUX (9; 0% instances), ADJ-AUX (8; 0% instances), PRON-AUX (1; 0% instances).
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1 900 900 NUM N NumType=Card 0 root 0:root _
2 se se SCONJ CS _ 8 mark 8:mark _
3 le il DET RD Definite=Def|Gender=Fem|Number=Plur|PronType=Art 4 det 4:det _
4 ricerche ricerca NOUN S Gender=Fem|Number=Plur 8 nsubj:pass 8:nsubj:pass _
5 sono essere AUX VA Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 8 aux:pass 8:aux:pass _
6 state essere AUX VA Gender=Fem|Number=Plur|Tense=Past|VerbForm=Part 8 cop 8:cop _
7 molto molto ADV B _ 8 advmod 8:advmod _
8 lunghe lungo ADJ A Gender=Fem|Number=Plur 1 advcl 1:advcl:se SpaceAfter=No
9 . . PUNCT FS _ 1 punct 1:punct _