(S (NP (BASENP (NNP Atta)) (COMMA ,) (NP (BASENP (DT a) (NN spokesperson)) (PP (IN for) (BASENP (DT the) (NN operation))))) (VP (VBD cited) (NP (NP (BASENP (JJ comparative) (NN statistics)) (PP (IN for) (NP (BASENP (DT the) (JJ four-week) (NNS periods)) (PP (IN of) (NP (NP (BASENP (NNP mid-January)) (PP (TO to) (BASENP (NNP mid-February)))) (CC versus) (NP (BASENP (NNP mid-February)) (PP (TO to) (BASENP (NNP mid-March))))))))) (COLON :) (NP (NP (NP (NP (NP (NP (LST (LS *)) (NP (BASENP (NN Civilian) (NN killing)) (COLON :) (NP (BASENP (NN 1440)) (PP (TO to) (BASENP (NN 265)))))) (NP (LST (LS *)) (NP (BASENP (NN Roadside) (NNS bombings)) (COLON :) (NP (BASENP (NN 163)) (PP (TO to) (BASENP (NN 102))))))) (NP (LST (LS *)) (NP (BASENP (NNS Carbombs)) (COLON :) (NP (BASENP (NN 56)) (PP (TO to) (BASENP (NN 36))))))) (NP (LST (LS *)) (NP (BASENP (NN Mortar) (NNS attacks)) (COLON :) (NP (BASENP (NN 204)) (PP (TO to) (BASENP (NN 109))))))) (NP (LST (LS *)) (NP (BASENP (NN Assassination) (NNS incidents)) (COLON :) (NP (BASENP (NN 519)) (PP (TO to) (BASENP (NN 22))))))) (NP (LST (LS *)) (NP (BASENP (NNS Kidnappings)) (COLON :) (NP (BASENP (NN 98)) (PP (TO to) (BASENP (NN 10))))))))))