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_53896 ( "Name" text, "Original name" text, "Commissioned" text, "Final decommission" text, "Fate" text )

### Question ###
When was the ship that had a fate of 'converted to laker, 1961; still in service' commissioned?

### Accurate SQL ###

SELECT "Commissioned" FROM table_53896 WHERE "Fate" = 'converted to laker, 1961; still in service'