query: SELECT COUNT (DISTINCT church_id) FROM wedding WHERE YEAR  =  2016
question: How many church them in year 2016 have the wedding?
query_toks: SELECT COUNT ( DISTINCT church_id ) FROM wedding WHERE YEAR = 2016
query_toks_no_value: select count ( distinct church_id ) from wedding where year = value
question_toks: How many church them in year 2016 have the wedding?