(S (S (S (NP (NP (BASENP (NN 94)) (PP (IN of) (BASENP (DT the) (NN 150) (NNS students)))) (PRN (LRB -LRB-) (BASENP (NN 62.66) (NN %)) (RRB -RRB-))) (VP (VBD did) (VP (PP (IN in) (BASENP (NN fact))) (VP (VB own) (BASENP (NN MP3) (NNS devices)))))) (COMMA ,) (SBAR (WHNP (BASENP (JJS most)) (WHPP (IN of) (WHNP (WP who)))) (S (VP (VBD were) (VP (VBN found) (S (S (VP (TO to) (VP (VB be) (VP (VP (VBG carrying) (BASENP (PRP it))) (PP (IN on) (BASENP (PRP them))))))) (SBAR (WHADVP (WRB when)) (S (VP (VBN questioned)))))))))) (PERIOD .))