(S (S (NP (BASENP (JJ Recent) (NNS comments)) (PP (IN from) (NP (BASENP (NNP Microsoft) (NN CEO) (NNP Steve) (NNP Ballmer)) (CC and) (BASENP (NN CFO) (NNP Chris) (NNP Liddell))))) (VP (VBP have) (VP (VBN mentioned) (SBAR (IN that) (S (S (VP (ADVP (RB not)) (VP (VBG acquiring) (BASENP (NNP Yahoo) (NNP !))))) (VP (VP (VBZ is) (ADVP (RB also))) (BASENP (DT an) (NN option)))))))) (PERIOD .))