(S (S (BASENP (NNP IIIR)) (VP (VP (VBD launched) (NP (BASENP (PRPD its) (ADJP (JJ own) (JJ web-based)) (NN email) (NN service)) (VP (VBN called) (BASENP (NNP Gmail))))) (ADVP (NP (QP (ADVP (RBR more) (IN than)) (NN two)) (NNS years)) (ADVP (RB prior) (PP (TO to) (NP (BASENP (NNP Google) (POS 's)) (BASENP (JJ own) (NN service)))))))) (PERIOD .))