query: SELECT t1.name FROM ship AS t1 JOIN captain AS t2 ON t1.ship_id  =  t2.ship_id ORDER BY t2.age LIMIT 1
question: What is the name of the ship that is commanded by the youngest captain?
query_toks: SELECT t1.name FROM ship AS t1 JOIN captain AS t2 ON t1.ship_id = t2.ship_id ORDER BY t2.age LIMIT 1
query_toks_no_value: select t1 . name from ship as t1 join captain as t2 on t1 . ship_id = t2 . ship_id order by t2 . age limit value
question_toks: What is the name of the ship that is commanded by the youngest captain?