(S (S (S (BASENP (PRP He)) (VP (VP (VBD held) (BASENP (DT the) (NN post))) (PP (IN since) (BASENP (DT the) (NN 2003) (JJ parliamentary) (NNS elections))))) (CONJP (COMMA ,) (CC and)) (S (BASENP (PRP it)) (VP (VP (VBD was) (PP (IN during) (BASENP (PRPD his) (NN government)))) (SBAR (IN that) (S (BASENP (NNP Croatia)) (VP (VBD entered) (BASENP (NNP NATO)))))))) (PERIOD .))