query: SELECT T2.Name FROM debate_people AS T1 JOIN people AS T2 ON T1.Negative  =  T2.People_ID GROUP BY T2.Name HAVING COUNT(*)  >=  2
question: Show the names of people were on the negative side of debates at least twice.
query_toks: SELECT T2.Name FROM debate_people AS T1 JOIN people AS T2 ON T1.Negative = T2.People_ID GROUP BY T2.Name HAVING COUNT ( * ) > = 2
query_toks_no_value: select t2 . name from debate_people as t1 join people as t2 on t1 . negative = t2 . people_id group by t2 . name having count ( * ) > = value
question_toks: Show the names of people were on the negative side of debates at least twice.