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_25346763_1 ( capacity VARCHAR, year_opened VARCHAR )

### Question ###
What is the capacity for a facility opened in 1956?

### Accurate SQL ###

SELECT COUNT(capacity) FROM table_25346763_1 WHERE year_opened = "1956"