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_42 ( score VARCHAR, surface VARCHAR, date VARCHAR )

### Question ###
For the game played on 31 July 2007 on clay what was the score?

### Accurate SQL ###

SELECT score FROM table_name_42 WHERE surface = "clay" AND date = "31 july 2007"