(S (S (S (NP (BASENP (JJ Armed) (NN police) (NNS officers)) (PP (IN from) (BASENP (NNP SO19)))) (VP (VBP have) (VP (VBN raided) (NP (BASENP (NNS properties)) (PP (IN in) (NP (NP (DT the) (NP (NP (BASENP (NNP Notting) (NNP Hill)) (CC and) (BASENP (NNP North) (NNP Kensington))) (NNS areas))) (PP (IN of) (BASENP (NNP London))))))))) (CC and) (S (BASENP (JJ Italian) (NNS forces)) (VP (VBP have) (VP (VP (VBN arrested) (BASENP (DT the) (JJ fourth) (NN bombing) (NN suspect))) (PP (IN at) (NP (BASENP (DT a) (NN property)) (PP (IN in) (NP (BASENP (NNP Rome)) (COMMA ,) (BASENP (NNP Italy)))))))))) (PERIOD .))