1. Abalone: Predict the age of abalone from physical measurements
2. Artificial Characters: Dataset artificially generated by using first order theory which describes structure of ten capital letters of English alphabet
3. Chess (King-Rook vs. King): Chess Endgame Database for White King and Rook against Black King (KRK).
4. Contraceptive Method Choice: Dataset is a subset of the 1987 National Indonesia Contraceptive Prevalence Survey.