(S (S (BASENP (DT The) (NNP Daily) (NNP Mirror)) (VP (VBZ claims) (SBAR (SBAR (IN that) (S (BASENP (DT the) (NNS bombers)) (VP (VBD brought) (NP (BASENP (NN return) (NN rail) (NNS tickets)) (PP (TO to) (BASENP (NNP Luton))))))) (CONJP (COMMA ,) (CC and)) (SBAR (IN that) (S (S (BASENP (PRP they)) (VP (VBD purchased) (NP (BASENP (NN pay) (CC and) (NN display)) (BASENP (NN car) (NN park) (NNS tickets))))) (SBAR (IN before) (S (VP (VP (VBG boarding) (BASENP (DT the) (NN train))) (PP (IN at) (BASENP (NNP Luton) (NNP Station))))))))))) (PERIOD .))