CREATE TABLE table_69847 ("Team" TEXT, "Car No." TEXT, "MNZ SPR" TEXT, "MNZ FEA" TEXT, "SPA SPR" TEXT, "SPA FEA" TEXT, "MON FEA" TEXT, "SIL SPR" TEXT, "SIL FEA" TEXT, "HUN SPR" TEXT, "HUN FEA" TEXT, "LMS SPR" TEXT, "LMS FEA" TEXT, "CAT SPR" TEXT, "CAT FEA" TEXT, "Points" TEXT)

What was the MNZ FEA when the SIL SPR was 18?
SELECT "MNZ FEA" FROM table_69847 WHERE "SIL SPR" = '18'
SELECT "MNZ FEA" FROM "table_69847" WHERE "SIL SPR" = '18'