Table: ship_launches_1952
Columns: country
builder
location
ship
class_type

Question: What Ship was Built by Cammell Laird?
SQL: SELECT "ship" FROM ship_launches_1952 WHERE "builder" = 'cammell laird'

Question: What Country is the John S. McCain Ship from?
SQL: SELECT "country" FROM ship_launches_1952 WHERE "ship" = 'john s. mccain'

Question: What is the Cargo Ship located at Birkenhead?
SQL: SELECT "ship" FROM ship_launches_1952 WHERE "class_type" = 'cargo ship' AND "location" = 'birkenhead'