(S (S (S (BASENP (NN 58) (NNS firefighters)) (VP (VBD were) (VP (VP (VBN injured) (PP (IN in) (BASENP (NN total)))) (PP (IN by) (BASENP (DT the) (NN blaze)))))) (COMMA ,) (SBAR (IN although) (S (BASENP (DT no) (JJ life-threatening) (NNS injuries)) (VP (VBD were) (VP (VBN sustained)))))) (PERIOD .))