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_40 ( b_score INTEGER, position VARCHAR, a_score VARCHAR )

### Question ###
what is the score for the 5th position and a score less than 7

### Accurate SQL ###

SELECT MIN(b_score) FROM table_name_40 WHERE position = "5th" AND a_score < 7