(S (S (PP (IN Unlike) (BASENP (JJ healthy) (NNS cells))) (COMMA ,) (S (BASENP (JJ cancerous) (NNS cells)) (VP (VP (VBP do) (RB not)) (VP (VP (VP (VB convert) (BASENP (NN food) (NNS molecules))) (PP (IN into) (BASENP (NN energy)))) (PP (IN in) (BASENP (DT the) (NN mitochondria))))))) (PERIOD .))