(S (S (BASENP (NNS Protesters)) (VP (VP (VBD gathered) (PP (IN in) (NP (NP (BASENP (NNP Amsterdam)) (COMMA ,) (BASENP (NNP Maastricht))) (CONJP (COMMA ,) (CC and)) (NP (BASENP (JJ several) (JJ other) (NNS cities)) (PP (IN in) (BASENP (NNP The) (NNPS Netherlands))))))) (S (VP (TO to) (VP (VB protest) (NP (BASENP (DT a) (NN visit)) (PP (IN by) (NP (BASENP (DT the) (NNP United) (NNPS States) (NNP President)) (COMMA ,) (BASENP (NNP George) (NNP W.) (NNP Bush)))))))))) (PERIOD .))