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_25 ( position VARCHAR, crewe_alexandra_career VARCHAR, goals VARCHAR )

### Question ###
What is the position when the Crewe Alexandra career is 1988 1990, with 31 goals?

### Accurate SQL ###

SELECT position FROM table_name_25 WHERE crewe_alexandra_career = "1988–1990" AND goals = 31