(S (S (QT (DQL ``) (QTC (S (ADVP (RB Often)) (S (BASENP (PRP I)) (VP (MD 'll) (VP (VB hear) (SBAR (S (BASENP (NN someone)) (VP (VB say) (NP (BASENP (NN something)) (PP (IN like) (COMMA ,) (QTL (DQL `) (UCP (INTJ (UH Oh)) (CC and) (S (S (VP (VP (VB be) (ADJP (JJ careful))) (SBAR (WHADVP (WRB when)) (S (BASENP (PRP you)) (VP (VBP meet) (BASENP (PRP him))))))) (COLON --) (S (BASENP (PRP he)) (VP (VBZ 's) (BASENP (NNP French)))))))))))))))) (COMMA ,)) (DQR '')) (S (BASENP (DT the) (NN source)) (VP (VBD said)))) (PERIOD .))