A, B, C, E, F, G
6
B, C, E, G
4
B, C, F
3
A, B, C, E, F
5
A, C, E, F, G
A, B, C, F, G
0
A, C, G
G
1
A, E, F, G
B, C, E, F, G
A, E, F
A, B
2
A, B, E
E, G