Do you see either toothbrushes or boys in the image?
No, there are no boys or toothbrushes.
   src        edge_attr  dst
0    0  to the right of   10
1    0  to the right of   11
2    8  to the right of   12
3   10   to the left of    0
4   11   to the left of    0
5   12               of    9
6   12   to the left of    8
7   12  to the right of   13
8   13   to the left of   12