Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:

Convert text to sql: Show the name of ships whose nationality is either United States or United Kingdom. | mission : mission_id , ship_id , code , launched_year , location , speed_knots , fate | ship : ship_id , name , type , nationality , tonnage | mission.ship_id = ship.ship_id | 

### Response:

select _ from _ where _ | select name from ship where nationality = 'United States' or nationality = 'United Kingdom'