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_2182654_6 ( no_in_season INTEGER, written_by VARCHAR )

### Question ###
What s the episode number in the season that was written by Nancy Oliver?

### Accurate SQL ###

SELECT MAX(no_in_season) FROM table_2182654_6 WHERE written_by = "Nancy Oliver"