(S (S (NP (BASENP (NNP Mousavi) (POS 's)) (NNS supporters)) (VP (VBP have) (VP (VP (VBN taken) (PP (TO to) (NP (BASENP (DT the) (NNS streets)) (PP (IN of) (BASENP (NNP Tehran)))))) (S (VP (TO to) (VP (VB protest) (BASENP (DT the) (NN election) (NNS results)))))))) (PERIOD .))