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_21 ( silver INTEGER, total VARCHAR, gold VARCHAR, rank VARCHAR )

### Question ###
How many Silver medals did the Nation ranking 8 with more than 1 Total medal but less than 1 Gold receive?

### Accurate SQL ###

SELECT SUM(silver) FROM table_name_21 WHERE gold < 1 AND rank = "8" AND total > 1