CREATE TABLE table_20997 ("Year" FLOAT, "Mens Open" TEXT, "Womens Open" TEXT, "Mixed Open" TEXT, "Mens u20" TEXT, "Womens u20" TEXT, "Senior Mixed" TEXT, "Mens 30" TEXT, "Womens 30" TEXT, "Mens 35" TEXT, "Womens 35" TEXT, "Mens 40" TEXT, "Womens 40" TEXT, "Mens 45" TEXT, "Mens 50" TEXT)

What were the results of the womens u20 when the mens 45 was Sunwest Razorbacks def Northern Eagles?
SELECT "Womens u20" FROM table_20997 WHERE "Mens 45" = 'SunWest Razorbacks def Northern Eagles'
SELECT "Womens u20" FROM "table_20997" WHERE "Mens 45" = 'SunWest Razorbacks def Northern Eagles'