(S (S (BASENP (NNP Co-op)) (VP (ADVP (RB first)) (VP (VP (VBD expressed) (NP (BASENP (DT an) (NN interest)) (PP (IN in) (BASENP (DT the) (NN purchase))))) (PP (IN in) (BASENP (NNP April)))))) (PERIOD .))