(S (S (PP (IN After) (NP (QP (ADVP (RBR more) (IN than)) (NN 18)) (NNS months))) (COMMA ,) (S (NP (BASENP (DT the) (NNP WMD) (NN investigation)) (CC and) (NP (BASENP (NN debriefing)) (PP (IN of) (BASENP (DT the) (JJ WMD-related) (NNS detainees))))) (VP (VBZ has) (VP (VBN been) (VP (VBN exhausted)))))) (PERIOD .))