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
Show the names of people who have been on the negative side of debates at least twice.
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
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
Show the names of people who have been on the negative side of debates at least twice .