(S (S (NP (NP (BASENP (DT An) (NN edit)) (PP (IN from) (BASENP (DT the) (NNP Senate)))) (PP (IN in) (BASENP (NNP July)))) (VP (VBD removed) (NP (BASENP (NNS references)) (PP (TO to) (NP (BASENP (DT a) (NN plagiarism) (NN scandal)) (PP (IN with) (NP (BASENP (NNP Senator) (NNP Joe) (NNP Biden)) (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBZ has) (VP (ADVP (RB informally)) (VP (VBN said) (SBAR (S (BASENP (PRP he)) (VP (MD may) (VP (VP (VB seek) (NP (BASENP (DT a) (JJ Democratic) (NN nomination)) (PP (IN for) (BASENP (NN president))))) (PP (IN in) (BASENP (NN 2008))))))))))))))))))) (PERIOD .))