(S (S (BASENP (NNP Tuijn)) (VP (VBZ has) (VP (VP (VBN overcome) (NP (BASENP (DT a) (NN variety)) (PP (IN of) (BASENP (NNS obstacles))))) (S (VP (TO to) (VP (VB reach) (BASENP (DT the) (JJ halfway) (NN point)))))))) (PERIOD .))