(S (S (PP (VBN Compared) (PP (IN with) (NP (NP (NP (BASENP (NNP Linux)) (CC and) (BASENP (NNP BSD) (NNP Unix))) (POS 's)) (BASENP (JJ monolithic) (NN kernel) (NN architecture))))) (COMMA ,) (S (S (BASENP (DT a) (ADJP (NN microkernel) (VBN based)) (NN operating) (NN system)) (VP (VP (VBZ provides) (BASENP (NNS developers))) (NP (BASENP (JJR greater) (NN modularity) (CC and) (NN isolation)) (PP (IN from) (BASENP (NN hardware)))))) (COMMA ,) (NP (BASENP (DT a) (JJ big) (NN win)) (PP (IN with) (NP (BASENP (NN L4)) (VP (ADVP (RB already)) (VP (VBG being) (ADJP (JJ available) (PP (IN for) (NP (BASENP (DT a) (JJ large) (NN number)) (PP (IN of) (BASENP (NN hardware) (NNS varieties))))))))))))) (PERIOD .))