CREATE TABLE table_59558 ("Season" FLOAT, "Year" FLOAT, "Mole" CLOB, "Winner" CLOB, "Runner-up" CLOB, "Total prize money" CLOB, "Potential prize money" CLOB, "Destination" CLOB)

When the Mole was Petrina Edge, what was the potential prize money?
SELECT "Potential prize money" FROM table_59558 WHERE "Mole" = 'petrina edge'
SELECT "Potential prize money" FROM "table_59558" WHERE "Mole" = 'petrina edge'