(S (S (NP (BASENP (NNS Members)) (PP (IN of) (BASENP (DT the) (NNP G8)))) (VP (VBP have) (VP (ADVP (RB reportedly)) (VP (VBN been) (VP (VP (VB keep) (ADVP (RB abreast) (PP (IN of) (BASENP (DT the) (NN situation))))) (PP (IN by) (BASENP (JJ U.S.) (NN government)))))))) (PERIOD .))