(S (S (QT (DQL ``) (QTC (S (BASENP (PRP I)) (VP (VBP think) (SBAR (IN that) (S (BASENP (NN climate) (NN change)) (VP (VBZ is) (ADJP (JJ alarming))))))) (COMMA ,)) (DQR '')) (S (BASENP (PRP he)) (VP (VBD said) (PP (IN on) (BASENP (NNP ABC) (NN radio)))))) (PERIOD .))