Is the projector in the top part or in the bottom of the picture?
The projector is in the top of the image.
     src        edge_attr  dst
0      0   on the side of    2
1      0   to the left of   20
2      0   to the left of   10
3      0  to the right of   23
4      0   to the left of    6
..   ...              ...  ...
135   23   to the left of    6
136   23   to the left of    4
137   23   to the left of   18
138   23   to the left of    7
139   23   to the left of    0

[140 rows x 3 columns]