Which color is the vest?
The vest is blue.
    src        edge_attr  dst
0     1   to the left of    8
1     1   to the left of    5
2     1   to the left of    4
3     2   to the left of    4
4     3               on    7
5     4  to the right of    2
6     4  to the right of    5
7     4  to the right of    1
8     4  to the right of    6
9     5  to the right of    1
10    5   to the left of    6
11    5   to the left of    4
12    6  to the right of   10
13    6   to the left of    4
14    6  to the right of    5
15    8  to the right of    1
16   10   to the left of    6
17   10               on    5