The dancing show does have the pattern of being older-skewing , '' said David F. Poltrack , the executive vice president for research at CBS .
David F. Poltrack /business/person/company CBS
DT NN NN VBZ VB DT NN IN VBG JJ , '' VBD NNP NNP NNP , DT JJ NN NN IN NN IN NNP .
David F. Poltrack
PERSON
CBS
ORGANIZATION
/business/person/company