(S (S (S (BASENP (JJ Modern) (JJ polar) (NNS bears)) (VP (VBP are) (ADJP (ADJP (RB genetically) (JJ related)) (PP (TO to) (NP (BASENP (DT an) (JJ extinct) (NN species)) (PP (IN of) (BASENP (JJ Irish) (JJ brown) (NN bear)))))))) (COMMA ,) (PP (VBG according) (PP (TO to) (NP (BASENP (DT a) (NN study)) (VP (VP (VBN published) (BASENP (NNP Thursday))) (PP (IN in) (BASENP (JJ Current) (NN Biology)))))))) (PERIOD .))