(S (S (BASENP (PRP They)) (VP (VBD had) (VP (VP (VBN used) (BASENP (DT the) (NN lift))) (S (VP (TO to) (VP (VP (VP (VB change) (BASENP (DT the) (NN pump) (NN price) (NN sign))) (PP (IN from) (BASENP (NNP Texaco)))) (PP (TO to) (BASENP (NNP Shell))))))))) (PERIOD .))