(S (S (S (BASENP (PRP It)) (VP (VP (VBZ is) (ADJP (JJ unfair))) (S (S (VP (TO to) (VP (VP (VB blame) (BASENP (NNP Pakistan) (CC or) (NNPS Pakistanis))) (PP (IN for) (NP (BASENP (DT these) (NNS acts)) (PP (IN of) (BASENP (NN terrorism)))))))) (SBAR (RB even) (SBAR (IN before) (S (BASENP (DT an) (NN investigation)) (VP (VBZ is) (VP (VBN undertaken))))))))) (COMMA ,) (S (NP (BASENP (NNP Husain) (NNP Haqqani)) (PRN (COMMA ,) (NP (NP (BASENP (NNP Pakistan) (POS 's)) (NN ambassador)) (PP (TO to) (BASENP (DT the) (NNP United) (NNPS States)))) (COMMA ,))) (VP (VBD said) (PP (IN in) (BASENP (DT a) (NN statement)))))) (PERIOD .))