Which side of the image is the mother on?
The mother is on the right of the image.
     src        edge_attr  dst
0      0   to the left of   21
1      0  to the right of   15
2      0  to the right of   12
3      0   to the left of   20
4      0  to the right of   16
..   ...              ...  ...
97    23  to the right of   16
98    23  to the right of    5
99    23  to the right of    3
100   23  to the right of   15
101   23  to the right of   14

[102 rows x 3 columns]