How is the weather?
It is clear.
     src        edge_attr  dst
0      0  to the right of   12
1      0  to the right of   14
2      0  to the right of   13
3      0  to the right of   15
4      0   to the left of    6
..   ...              ...  ...
133   22   to the left of    1
134   22   to the left of   17
135   22   to the left of   16
136   22   to the left of    5
137   23   to the left of   16

[138 rows x 3 columns]