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_18595004_7 (tonioli VARCHAR, week__number VARCHAR)

### Question ###
How many sets of marks does Tonioli get in week 3?

### Accurate SQL ###

SELECT COUNT(tonioli) FROM table_18595004_7 WHERE week__number = 3