what is the commissioned date with laid down of 17 dec 1951?
CREATE TABLE table_name_8 (commissioned VARCHAR, laid_down VARCHAR)
SELECT commissioned FROM table_name_8 WHERE laid_down = "17 dec 1951"
### Context: CREATE TABLE table_name_8 (commissioned VARCHAR, laid_down VARCHAR) ### Question: what is the commissioned date with laid down of 17 dec 1951? ### Answer: SELECT commissioned FROM table_name_8 WHERE laid_down = "17 dec 1951"