Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_23 ( power_output VARCHAR, build_date VARCHAR )

### Question ###
Which power output had a Build date of 1951 1956?

### Accurate SQL ###

SELECT power_output FROM table_name_23 WHERE build_date = "1951–1956"