(S (S (NP (BASENP (DT A) (NN witness)) (PP (IN near) (SBAR (WHADVP (WRB where)) (S (BASENP (DT the) (NN car) (NN bomb)) (VP (VBD exploded)))))) (VP (VBD said) (SBAR (IN that) (S (S (BASENP (DT a) (NN man)) (VP (VBD had) (VP (VP (VBN parked) (BASENP (DT a) (JJ blue) (NN truck))) (CONJP (COMMA ,) (CC and)) (VP (VBN left) (BASENP (PRP it)))))) (SBAR (NP (BASENP (DT a) (NN quarter)) (PP (IN of) (BASENP (DT an) (NN hour)))) (SBAR (IN before) (S (BASENP (PRP it)) (VP (VBD exploded))))))))) (PERIOD .))