(S (S (BASENP (NNP Microsoft)) (VP (VBD decided) (S (VP (TO to) (VP (VB buy) (NP (BASENP (DT a) (NN health) (NN information) (NN search) (NN engine)) (VP (VBN called) (BASENP (NNP Medstory))))))))) (PERIOD .))