(S (S (PP (IN In) (NP (BASENP (DT a) (NN letter)) (PP (TO to) (BASENP (NNP Saakashvili))))) (COMMA ,) (S (BASENP (NNP Nicolas) (NNP Sarkozy)) (VP (VBD confirmed) (SBAR (IN that) (S (PP (VBG according) (PP (TO to) (BASENP (DT the) (VBN signed) (NN peace) (NN plan)))) (COMMA ,) (S (BASENP (JJ Russian) (NNS forces)) (VP (VBP are) (VP (VBN obliged) (S (VP (TO to) (VP (VP (VB withdraw) (PP (IN from) (BASENP (DT all) (JJ major) (JJ Georgian) (NNS towns)))) (PP (ADVP (RB regardless)) (PP (IN of) (NP (BASENP (DT the) (QT (DQL ``) (JJ additional) (NN security) (NNS measures) (DQR ''))) (VP (VBN mentioned) (PP (IN in) (BASENP (DT the) (NN document)))))))))))))))))) (PERIOD .))