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_42513 ( "Rank" text, "Nation" text, "Gold" real, "Silver" real, "Bronze" real, "Total" real )

### Question ###
What is the average number of silver medals of the nation with 3 bronzes and more than 4 total medals?

### Accurate SQL ###

SELECT AVG("Silver") FROM table_42513 WHERE "Bronze" = '3' AND "Total" > '4'