(S (S (NP (BASENP (DT These) (NNS components)) (PP (IN of) (BASENP (DT the) (NN immune) (NN system)))) (VP (MD can) (VP (VB eliminate) (BASENP (ADJP (JJ virus-infected) (CC and) (JJ cancerous)) (NNS cells))))) (PERIOD .))