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