(S (S (PP (IN By) (BASENP (RB approximately) (NN 9:15) (NN p.m.))) (COMMA ,) (S (BASENP (DT the) (NN flame)) (VP (VBD was) (VP (ADVP (RB entirely)) (VP (VBN extinguished) (COMMA ,) (NP (NNS thanks) (PP (ADVP (RB mainly)) (PP (TO to) (BASENP (DT the) (JJ water-equipped) (NNS helicopters)))))))))) (PERIOD .))