Which parties have hosts of age above 50? Give me the party locations.
SELECT T3.Location FROM party_host AS T1 JOIN HOST AS T2 ON T1.Host_ID  =  T2.Host_ID JOIN party AS T3 ON T1.Party_ID  =  T3.Party_ID WHERE T2.Age  >  50
parties have hosts of age above 50 refers to WHERE Age > 50; party locations refers to SELECT Location; involves joining tables party_host, HOST, and party based on Host_ID and Party_ID to link hosts with their parties.