Do you see a white plate or table?
Yes, there is a white table.
   src        edge_attr  dst
0    3   to the left of   11
1    5  to the right of    7
2    7   to the left of    5
3   11  to the right of   13
4   11  to the right of    3
5   12  to the right of   13
6   13   to the left of   11
7   13   to the left of   12