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 track (year_opened VARCHAR, seating INTEGER)

### Question ###
Show year where a track with a seating at least 5000 opened and a track with seating no more than 4000 opened.

### Accurate SQL ###

SELECT year_opened FROM track WHERE seating BETWEEN 4000 AND 5000