What are the names of ships that have more than one captain?
SELECT t1.name FROM ship AS t1 JOIN captain AS t2 ON t1.ship_id  =  t2.ship_id GROUP BY t2.ship_id HAVING count(*)  >  1
SELECT t1.name FROM ship AS t1 JOIN captain AS t2 ON t1.ship_id  =  t2.ship_id GROUP BY t2.ship_id HAVING count(*)  >  1
[{'Name': 'HMS Gorgon'}, {'Name': 'HM Cutter Avenger'}]