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_12354 ( "Rank" text, "Nation" text, "Gold" real, "Silver" real, "Bronze" real, "Total" real )

### Question ###
What is the highest Silver, when Gold is '8', and when Total is greater than 31?

### Accurate SQL ###

SELECT MAX("Silver") FROM table_12354 WHERE "Gold" = '8' AND "Total" > '31'