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_99 (week INTEGER, result VARCHAR, attendance VARCHAR)

### Question ###
Tell me the week for result of l 31-27, and an Attendance smaller than 85,865

### Accurate SQL ###

SELECT AVG(week) FROM table_name_99 WHERE result = "l 31-27" AND attendance < 85 OFFSET 865