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_38 ( silver INTEGER, bronze VARCHAR, rank VARCHAR, total VARCHAR )

### Question ###
On average, what is the number of silver medals for nations ranking higher than 7, with a total of 6 medals and fewer than 2 bronze medals?

### Accurate SQL ###

SELECT AVG(silver) FROM table_name_38 WHERE rank > 7 AND total = 6 AND bronze < 2