What color is the tshirt that is made of cotton, green or red?
The tee shirt is green.
     src        edge_attr  dst
0      0       sitting on   21
1      0   to the left of   18
2      0   to the left of   27
3      0  to the right of   24
4      0   to the left of   31
..   ...              ...  ...
212   31   to the left of    8
213   31   to the left of    9
214   31  to the right of   21
215   31   to the left of   27
216   31  to the right of    0

[217 rows x 3 columns]