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.[96]
Proyek seseleh sané jaga ngwangun basis pengetahuan ljangkep saking pamineh becik (minakadi, Cyc) ngamerluang akéh pisan rekayasa ontologis sané banget ngawinang leleh - ipun pasti sampun kawangun, antuk tangan, asiki konsep sukil ring asiki galah.