CREATE TABLE HOST (Name VARCHAR, Host_ID VARCHAR)
CREATE TABLE party (Party_ID VARCHAR, Number_of_hosts INT)
CREATE TABLE party_host (Host_ID VARCHAR, Party_ID VARCHAR)

Show the host names for parties with number of hosts greater than 20.
SELECT T2.Name 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 T3.Number_of_hosts > 20
SELECT "T2"."Name" 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" AND "T3"."Number_of_hosts" > 20