Show the average price of hotels for different pet policy.
SELECT pets_allowed_yn ,  avg(price_range) FROM HOTELS GROUP BY pets_allowed_yn
SELECT pets_allowed_yn ,  avg(price_range) FROM HOTELS GROUP BY pets_allowed_yn
[{'pets_allowed_yn': '', 'avg(price_range)': 989295.7443080185}, {'pets_allowed_yn': '1', 'avg(price_range)': 81426646.37909974}]