(S (S (PP (IN On) (BASENP (NNP Monday))) (COMMA ,) (S (BASENP (NNP Yarra) (NNP Trams) (NN spokesperson) (NNP Colin) (NNP Tyrus)) (VP (VP (VBD told) (BASENP (NNP The) (NNP Age))) (SBAR (IN that) (S (NP (EX there)) (VP (VBD had) (VP (VP (VP (VBN been) (QTL (DQL ``) (BASENP (DT a) (NN mystery) (NN collision)))) (PP (IN in) (BASENP (DT the) (NN depot)))) (QTR (PP (IN on) (BASENP (NNP April) (NN 10))) (DQR ''))))))))) (PERIOD .))