pattern {
    H[ClauseType="Int"] ; % interrogative head
    p: H -[mark|case]-> P ; P << H ; % dependent preceding preposition or prepositive locution
    P[upos="ADP",!ExtPos]|[ExtPos="ADP"] ;
    a: A -[1=acl|advcl|advmod|amod|nmod|nummod]-> H % modifier phrase
    % only advcl regard adverbial propositions, but
    % I tried other modifier relaions to be sure I didn't miss anything
}