(S (S (NP (BASENP (DT The) (ADJP (RBS most) (JJ successful)) (NN country)) (BASENP (DT this) (NN year))) (VP (VBD was) (NP (BASENP (NNP Italy)) (COMMA ,) (PP (IN with) (NP (BASENP (DT a) (NN total)) (PP (IN of) (NP (BASENP (NN 153) (NNS medals)) (COMMA ,) (SBAR (WHNP (BASENP (NN 57)) (WHPP (IN of) (WHNP (WDT which)))) (S (VP (VBD were) (BASENP (NN gold)))))))))))) (PERIOD .))