(S (S (NP (BASENP (JJ Major) (NNS websites)) (PP (VBG including) (NP (BASENP (NNS services)) (VP (VBN run) (PP (IN by) (NP (NP (BASENP (NNP Google)) (COMMA ,) (BASENP (NNP Facebook))) (CONJP (COMMA ,) (CC and)) (BASENP (NNP Yahoo) (NNP !)))))))) (VP (VBP are) (VP (VP (VBG taking) (NP (BASENP (NN part)) (PP (IN in) (BASENP (DT the) (NN test))))) (COMMA ,) (S (VP (VP (VBG switching) (BASENP (PRPD their) (NN content))) (S (VP (TO to) (VP (VB use) (BASENP (DT the) (JJ new) (NN system)))))))))) (PERIOD .))