UCI Machine Learning RepositoryData was used to test 2 tier approach with learning from positive and negative examples 1. dur: duration of agreement [1..7] 2 wage1.wage : wage increase in first year of contract [2.0 .. 7.0] 3 wage2.wage : wage increase in second year of contract [2.0 .. 7.0] 4 wage3.wage : wage increase in third year of contract [2.0 .. 7.0] 5 cola : cost of living allowance [none, tcf, tc] 6 hours.hrs : number
