(S (S (BASENP (JJ Last) (NN week)) (COMMA ,) (S (PP (IN as) (NP (BASENP (NN part)) (PP (IN of) (NP (BASENP (DT a) (JJR tougher) (NN line)) (VP (VBN adopted) (PP (IN by) (BASENP (DT the) (JJ Nigerian) (NN government)))))))) (COMMA ,) (S (BASENP (NNP President) (NNP Obasanjo)) (VP (VP (VP (VBD sent) (PRT (RP in))) (BASENP (DT the) (NNP Army))) (COMMA ,) (PP (IN with) (NP (NNS orders) (S (VP (TO to) (VP (VP (VP (VB use) (QTL (DQL ``) (BASENP (NN force)))) (QTR (PP (IN for) (BASENP (NN force))) (DQR ''))) (PP (IN against) (NP (BASENP (NNS militants)) (PP (IN in) (BASENP (DT the) (NN region)))))))))))))) (PERIOD .))