(S (S (BASENP (NNP Uinta) (NNP National) (NNP Forest) (NN spokesman) (NNP Loyal) (NNP Clark)) (VP (VBD said) (SBAR (SBAR (S (BASENP (NN forest) (NNS firefighters)) (VP (VBD were) (ADJP (JJ unable) (S (VP (TO to) (VP (VB respond) (PP (TO to) (NP (BASENP (JJ several) (JJ small) (NNS fires) (RB nearby)) (SBAR (WHNP (WDT that)) (S (VP (VBD were) (VP (ADVP (RB apparently)) (VP (VBN started) (PP (IN by) (BASENP (JJ flying) (NN debris))))))))))))))))) (CONJP (COMMA ,) (CC and)) (SBAR (IN that) (S (BASENP (NNS helicopters)) (VP (VP (VBD dropped) (BASENP (NN water))) (S (VP (TO to) (VP (VB extinguish) (BASENP (PRP them))))))))))) (PERIOD .))