(S (S (NP (BASENP (DT The) (NNS microchips)) (PP (IN in) (BASENP (NNS dogs)))) (VP (VBP are) (PP (IN for) (NP (BASENP (NN owner) (NN identification)) (COMMA ,) (PP (IN in) (NP (BASENP (NN case)) (PP (IN of) (NP (BASENP (NNS attacks)) (PP (IN on) (BASENP (NNS humans))))))))))) (PERIOD .))