(S (S (NP (BASENP (NNS Thousands)) (PP (IN of) (BASENP (NNPS Greeks)))) (VP (VP (VP (VBD gathered) (BASENP (JJ last) (NN night))) (PP (IN in) (NP (BASENP (NNP Syntagma) (NN square)) (PP (IN in) (NP (BASENP (NN front)) (PP (IN of) (NP (BASENP (DT the) (NN parliament) (NN building)) (PP (IN in) (BASENP (NNP Athens)))))))))) (S (VP (TO to) (VP (VB protest) (PP (IN over) (NP (BASENP (DT the) (JJ political) (NN response)) (PP (TO to) (BASENP (DT the) (NNS fires)))))))))) (PERIOD .))