(S (S (ADVP (RB Recently)) (COMMA ,) (S (BASENP (NNP Microsoft)) (VP (VBD bought) (NP (BASENP (NNP Giant) (NN software)) (COMMA ,) (NP (BASENP (NNS makers)) (PP (IN of) (NP (UCP (ADJP (JJ antivirus)) (CC and) (BASENP (NN spyware) (NN prevention))) (NN software)))))))) (PERIOD .))