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_39357 ( "Outcome" text, "Year" real, "Championship" text, "Surface" text, "Partner" text, "Opponents in the final" text, "Score in the final" text )

### Question ###
What was the outcome when the oppenent was serena williams venus williams and had a hard surface?

### Accurate SQL ###

SELECT "Outcome" FROM table_39357 WHERE "Opponents in the final" = 'serena williams venus williams' AND "Surface" = 'hard'