(S (S (BASENP (DT The) (NN two)) (VP (VP (VBP share) (NP (BASENP (DT a) (JJ distinct) (JJ genetic) (NN marker)) (ADJP (ADJP (RB not) (JJ present)) (PP (IN in) (BASENP (JJ other) (JJ brown) (NNS bears)))))) (COMMA ,) (S (VP (ADVP (RB strongly)) (VP (VBG suggesting) (SBAR (IN that) (S (BASENP (DT all) (JJ modern) (JJ polar) (NNS bears)) (VP (VBP are) (VP (VBN descended) (PP (IN from) (BASENP (DT the) (JJ same) (JJ extinct) (NN species)))))))))))) (PERIOD .))