query: SELECT count(*) FROM EVENTS WHERE event_id NOT IN (SELECT event_id FROM Participants_in_Events)
question: How many events did ain't no participants?
query_toks: SELECT count ( * ) FROM EVENTS WHERE event_id NOT IN ( SELECT event_id FROM Participants_in_Events )
query_toks_no_value: select count ( * ) from events where event_id not in ( select event_id from participants_in_events )
question_toks: How many events did ain't no participants?