What are the names of parties with at least 2 events?
SELECT T2.party_name FROM party_events AS T1 JOIN party AS T2 ON T1.party_id  =  T2.party_id GROUP BY T1.party_id HAVING count(*)  >=  2
SELECT T2.party_name FROM party_events AS T1 JOIN party AS T2 ON T1.party_id  =  T2.party_id GROUP BY T1.party_id HAVING count(*)  >=  2
[{'Party_name': 'Convention Peoples Party'}, {'Party_name': 'Progress Party'}, {'Party_name': '3'}]