On which side are the people?
The people are on the left of the image.
    src        edge_attr  dst
0     0   to the left of   16
1     1  to the right of    8
2     2  to the right of   14
3     3   to the left of    4
4     4  to the right of    3
5     4  to the right of   14
6     4   to the left of    9
7     7   to the left of   12
8     8  to the right of   12
9     8   to the left of    1
10    9  to the right of    4
11   12   to the left of    8
12   12  to the right of    7
13   14   to the left of    2
14   14   to the left of    4
15   16  to the right of    0