CREATE TABLE table_77890 ("Vehicle Numbers" TEXT, "Vehicle Types" TEXT, "Livery" TEXT, "Location" TEXT, "Status" TEXT)

what livery has a status of in service as coaching stock?
SELECT "Livery" FROM table_77890 WHERE "Status" = 'in service as coaching stock'
SELECT "Livery" FROM "table_77890" WHERE "Status" = 'in service as coaching stock'