(S (S (ADVP (RB However)) (S (BASENP (DT some) (NNS students)) (VP (VP (VBD pointed) (PP (TO to) (NP (NP (BASENP (NNP France) (POS 's)) (NN involvement)) (PP (IN in) (BASENP (DT the) (JJ American) (NNP Revolution)))))) (COMMA ,) (S (VP (VBG questioning) (SBAR (WHADVP (WRB how) (RB long)) (S (NP (BASENP (NNP America) (POS 's)) (NN memory)) (VP (ADVP (RB really)) (VBZ is))))))))) (PERIOD .))