CREATE TABLE table_8484 ("School" TEXT, "Locality" TEXT, "Ages" TEXT, "Capacity" FLOAT, "Ofsted" FLOAT)

Which Capacity has a School of windlehurst school, and an Ofsted smaller than 131889?
SELECT SUM("Capacity") FROM table_8484 WHERE "School" = 'windlehurst school' AND "Ofsted" < '131889'
SELECT SUM("Capacity") FROM "table_8484" WHERE "Ofsted" < '131889' AND "School" = 'windlehurst school'