(S (S (NP (BASENP (DT The) (JJS biggest) (NN contribution)) (PP (IN of) (BASENP (JJ total) (NN response)))) (VP (VP (VP (VBZ comes) (PP (IN from) (BASENP (NNP North) (NNP America)))) (PRN (LRB -LRB-) (BASENP (NN 52) (NN %)) (RRB -RRB-))) (COMMA ,) (VP (VP (VP (ADVP (RB then)) (PP (IN by) (BASENP (NNP Europe)))) (PRN (LRB -LRB-) (BASENP (NN 30) (NN %)) (RRB -RRB-))) (CONJP (COMMA ,) (CC and)) (VP (ADVP (RB finally)) (VP (BASENP (DT the) (JJ Pacific) (NN region)) (PRN (LRB -LRB-) (BASENP (NN 18) (NN %)) (RRB -RRB-))))))) (PERIOD .))