On which side of the picture are the glasses?
The glasses are on the left of the image.
    src        edge_attr  dst
0     0               on    1
1     2  to the right of    3
2     3   to the left of    2
3     4   to the left of    9
4     4  to the right of   12
5     6   to the left of    9
6     9  to the right of   11
7     9  to the right of    6
8     9  to the right of    4
9     9  to the right of   12
10   11               in   12
11   11   to the left of    9
12   12   to the left of    4
13   12   to the left of    9