(S (S (BASENP (JJ Last) (NN week)) (COMMA ,) (S (NP (NP (BASENP (JJ former) (NNP Foreign) (NNP Minister)) (PP (IN of) (BASENP (NNP Germany)))) (COMMA ,) (BASENP (NNP Joschka) (NNP Fischer))) (VP (VBD said) (SBAR (IN that) (S (BASENP (PRP he)) (VP (VBD was) (ADJP (JJ worried) (SBAR (IN that) (S (BASENP (DT the) (JJ upcoming) (ADJP (NNP US) (JJ Presidential)) (NN election)) (VP (MD could) (VP (VB heighten) (NP (BASENP (NNS tensions)) (PP (IN between) (NP (BASENP (DT the) (NNP US)) (CC and) (BASENP (NNP Iran)))))))))))))))) (PERIOD .))