(S (S (ADVP (RB However)) (S (NP (BASENP (NNS scientists)) (PP (IN with) (NP (BASENP (DT the) (NNP Department)) (PP (IN of) (BASENP (NNP Conservation)))))) (COMMA ,) (VP (VBP are) (VP (VBG aiming) (S (VP (TO to) (VP (VP (VB overcome) (BASENP (DT this))) (PP (IN by) (S (VP (VBG shifting) (BASENP (NNS juveniles)))))))))))) (PERIOD .))