(S (S (NP (BASENP (NNS Officials)) (PP (IN with) (NP (BASENP (DT the) (NNP United) (NNPS States)) (NP (BASENP (NNP Department)) (PP (IN of) (BASENP (NNP Defense))))))) (VP (VBP have) (VP (VBN stated) (SBAR (IN that) (S (BASENP (JJ Israeli) (NN fighter) (NNS planes)) (VP (VP (VBD struck) (NP (NP (QP (ADVP (IN at) (JJS least)) (NN one)) (NN target)) (PP (IN inside) (BASENP (NNP Syria))))) (ADVP (BASENP (DT a) (NN week)) (RB ago)))))))) (PERIOD .))