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_30 ( year INTEGER, role VARCHAR, title VARCHAR )

### Question ###
What's the average year for the Role of alvin seville simon seville david 'dave' seville, and a Title of the chipmunk adventure?

### Accurate SQL ###

SELECT AVG(year) FROM table_name_30 WHERE role = "alvin seville simon seville david 'dave' seville" AND title = "the chipmunk adventure"