CREATE TABLE table_57409 ("Crew" FLOAT, "Year 10 1st Quad" TEXT, "Year 10 2nd Quad" TEXT, "Year 10 3rd Quad" TEXT, "Year 10 4th Quad" TEXT, "Year 10 Single Scull" TEXT, "Year 9 1st Quad" TEXT, "Year 9 2nd Quad" TEXT, "Year 9 3rd Quad" TEXT, "Year 9 4th Quad" TEXT, "Year 9 Single Scull" TEXT, "Year 8 1st Quad" TEXT, "Year 8 2nd Quad" TEXT, "Year 8 3rd Quad" TEXT, "Year 8 4th Quad" TEXT, "Year 8 Single Scull" TEXT)

For the Crew with Year 9 2nd Quads of STM, Year 9 1st Quads of SOM, and a Year 8 3rd Quads of STA what was the Year 8 1st Quads?
SELECT "Year 8 1st Quad" FROM table_57409 WHERE "Year 9 2nd Quad" = 'stm' AND "Year 9 1st Quad" = 'som' AND "Year 8 3rd Quad" = 'sta'
SELECT "Year 8 1st Quad" FROM "table_57409" WHERE "Year 8 3rd Quad" = 'sta' AND "Year 9 1st Quad" = 'som' AND "Year 9 2nd Quad" = 'stm'