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_81 (Id VARCHAR)

### Question ###
How many sets were played in the 2011 Tournament in which there were 3R in 2007?

### Accurate SQL ###

SELECT 2011 FROM table_name_81 WHERE 2007 = "3r"