What are the names of the hosts that held parties with the least number of hosts?
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 order by T3.Number_of_hosts asc limit 1
names of the hosts = SELECT T2.Name; least number of hosts = ORDER BY T3.Number_of_hosts ASC; parties held by hosts = JOIN operation between party_host, HOST, and party tables;