SELECT T3.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid  =  T2.eid JOIN Aircraft AS T3 ON T3.aid  =  T2.aid WHERE T1.name  =  "John Williams"
What are the names of all aircrafts that John Williams have certificates to be able to fly?
SELECT T3.name FROM Employee AS T1 JOIN Certificate AS T2 ON T1.eid = T2.eid JOIN Aircraft AS T3 ON T3.aid = T2.aid WHERE T1.name = `` John Williams ''
select t3 . name from employee as t1 join certificate as t2 on t1 . eid = t2 . eid join aircraft as t3 on t3 . aid = t2 . aid where t1 . name = value
What are the names of all aircrafts that John Williams have certificates to be able to fly ?