(S (S (BASENP (EX There)) (VP (VBP are) (NP (NNS reports) (SBAR (IN that) (S (NP (BASENP (NN one)) (PP (IN of) (BASENP (DT the) (NNS trains)))) (VP (VBD ran) (BASENP (DT a) (NN stop) (NN signal)))))))) (PERIOD .))