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_204_944 ( id number, "mine" text, "province" text, "coordinates" text, "town" text, "dates" text, "comments" text )

### Question ###
which mine was open longer , golden giant or beanland mine ?

### Accurate SQL ###

SELECT "mine" FROM table_204_944 WHERE "mine" IN ('golden giant mine', 'beanland mine') ORDER BY "dates" - "dates" DESC LIMIT 1