Question: Show the names of people that are on affirmative side of debates with number of audience bigger than 200.
SQL: SELECT T3.Name FROM debate_people AS T1 JOIN debate AS T2 ON T1.Debate_ID  =  T2.Debate_ID JOIN people AS T3 ON T1.Affirmative  =  T3.People_ID WHERE T2.Num_of_Audience  >  200