Research projects that attempt to build a complete knowledge base of commonsense knowledge (e.g., Cyc) require enormous amounts of laborious ontological engineering—they must be built, by hand, one complicated concept at a time.
Anyatən ən umaɣ tirəmnen oɣən ən tedajit timdat ən tiyətawen ən tənna iyat(sund, Cyc) tirwənid təjutawen maqornen ən musnat ontologique tašeɣalat- ad aqalan oɣən, as fais, mənhuy assohen as agud.