(S (S (BASENP (NNP Lewis)) (VP (VP (VBZ doubts) (SBAR (S (BASENP (NNS soldiers)) (VP (VBD had) (NP (BASENP (NN time)) (SBAR (S (VP (TO to) (VP (VB fire) (BASENP (NN warning) (NNS shots))))))))))) (PP (IN due) (PP (TO to) (NP (BASENP (DT the) (NN speed)) (PP (IN of) (BASENP (DT the) (JJ oncoming) (NN motorcycle)))))))) (PERIOD .))