(S (S (S (NP (BASENP (NN 12) (NNS firefighters)) (PP (IN in) (NP (NP (BASENP (NNP Buffalo)) (COMMA ,) (BASENP (NNP New) (NNP York))) (COMMA ,) (BASENP (NNP United) (NNPS States))))) (VP (VBP have) (VP (VBN been) (VP (VBN taken) (PP (TO to) (NP (BASENP (DT the) (NN hospital)) (SBAR (WHADVP (WRB where)) (S (BASENP (PRP they)) (VP (VBP are) (VP (VBG being) (VP (VBN treated) (PP (IN for) (NP (BASENP (NN smoke) (CC and) (NN chemical)) (NN inhalation)))))))))))))) (SBAR (IN after) (S (BASENP (DT a) (JJ massive) (NN fire)) (VP (VP (VP (VBD broke) (PRT (RP out))) (PP (IN at) (NP (BASENP (DT a) (NN warehouse)) (PP (IN on) (NP (BASENP (NNP Buffalo) (POS 's)) (BASENP (NN west) (NN side))))))) (COMMA ,) (BASENP (JJ early) (NNP Monday) (NN morning)))))) (PERIOD .))