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_28980706_4 ( rank__timeslot_ VARCHAR, share__18_49_ VARCHAR )

### Question ###
When 13 is the share (18-49) what is the rank (timeslot)?

### Accurate SQL ###

SELECT rank__timeslot_ FROM table_28980706_4 WHERE share__18_49_ = 13