What is common to the dress shirt and the collar?
The color, both the dress shirt and the collar are blue.
    src        edge_attr  dst
0     0   to the left of   13
1     0  to the right of    5
2     5   to the left of   12
3     5   to the left of    8
4     5   to the left of    0
5     8   to the left of   13
6     8  to the right of    5
7    10   to the left of   13
8    11   to the left of   13
9    12   to the left of   13
10   12  to the right of    5
11   13  to the right of    0
12   13  to the right of    8
13   13  to the right of   11
14   13  to the right of   12
15   13  to the right of   10