CREATE TABLE table_31725 ("Number" FLOAT, "Origin" TEXT, "Final destination" TEXT, "Frequency" TEXT, "Distance" TEXT)

What is the frequency of number 3 with a bus station origin?
SELECT "Frequency" FROM table_31725 WHERE "Origin" = 'bus station' AND "Number" = '3'
SELECT "Frequency" FROM "table_31725" WHERE "Number" = '3' AND "Origin" = 'bus station'