[b, c], vector of string
4
0
0
2
0
2
1
[d, c], vector of string
5
0
0
2
1
3
2
[d, e], vector of string
6
3
2
3
2
[f, e], vector of string
7
4
3
3
2
[f, e], vector of string
8
4
3
4
2
[g, e], vector of string
9
0
0
4
2
5
4
[c, e, d], vector of string
19
6
0
5
0
4
0
[c, e], vector of string
6
0
5
0
0
0
[c, e], vector of string
22
12
0
10
0
0
0
[c, e], vector of string
19
6
0
5
0
4
0
[c, e, d], vector of string
38
12
0
10
0
8
0
0, c
1, e
2, d
0, c
1, e
2, d
0, c
1, e
2, d