be interested in knowing any of them personally 
(ROOT (S (VP (VB be) (ADJP (JJ interested) (PP (IN in) (S (VP (VBG knowing) (NP (NP (DT any)) (PP (IN of) (NP (PRP them)))) (ADVP (RB personally)))))))))
(ROOT (S (VP (VB ) (ADJP (JJ ) (PP (IN ) (S (VP (VBG ) (NP (NP (DT )) (PP (IN ) (NP (PRP )))) (ADVP (RB )))))))))