The researchers used a questionnaire to interview a random sample of 351 people ages 20 to 80 in the Vancouver , British Columbia , area , asking about their dog ownership and level of physical activity .
British Columbia /location/location/contains Vancouver
DT NNS VBD DT NN TO VB DT JJ NN IN CD NNS NNS CD TO CD IN DT NNP , NNP NNP , NN , VBG IN PRP$ NN NN CC NN IN JJ NN .
British Columbia
LOCATION
Vancouver
LOCATION
/location/location/contains