query: SELECT poll_source FROM candidate ORDER BY oppose_rate DESC LIMIT 1
question: Return the poll source corresponding to the candidate which have the oppose rate.
query_toks: SELECT poll_source FROM candidate ORDER BY oppose_rate DESC LIMIT 1
query_toks_no_value: select poll_source from candidate order by oppose_rate desc limit value
question_toks: Return the poll source corresponding to the candidate which have the oppose rate.