Adult Income - Locked concept lattice

a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 a20

age workclass fnlwgt education marital-status occupation relationship race gender capital-gain capital-loss hours-per-week native-country income

gender is Female income <= 50K