(S (S (BASENP (DT Some) (NNS people)) (VP (ADVP (RB reportedly)) (VP (VP (VBD felt) (NP (BASENP (DT the) (NN explosion)) (PRN (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VP (VBD sent) (BASENP (NNS flames))) (ADVP (ADVP (RB as) (RB high)) (PP (IN as) (NP (BASENP (DT the) (NN tower)) (PP (IN in) (BASENP (DT the) (NN refinery))))))))) (COMMA ,)))) (PP (IN from) (ADVP (ADVP (RB as) (RB far)) (PP (IN as) (NP (BASENP (NN five) (NNS miles)) (ADVP (RB away))))))))) (PERIOD .))