(S (S (BASENP (NNP Apple) (NNP Inc.)) (VP (BASENP (NN today)) (VP (VBZ has) (VP (VP (VBN introduced) (BASENP (DT the) (JJ much-anticipated) (NNP iPhone))) (PP (IN at) (NP (BASENP (DT the) (NNP Macworld) (NNP Conference)) (PP (IN in) (BASENP (NNP San) (NNP Francisco))))))))) (PERIOD .))