query: SELECT pets_allowed_yn ,  avg(price_range) FROM HOTELS GROUP BY pets_allowed_yn
question: Show that average price of hotels for different pet policys.
query_toks: SELECT pets_allowed_yn , avg ( price_range ) FROM HOTELS GROUP BY pets_allowed_yn
query_toks_no_value: select pets_allowed_yn , avg ( price_range ) from hotels group by pets_allowed_yn
question_toks: Show that average price of hotels for different pet policys.