On which side is the backpack, the left or the right?
The backpack is on the left of the image.
    src        edge_attr  dst
0     0               on    9
1     0             near   13
2     1         boarding    0
3     1   to the left of   10
4     1   to the left of   11
5     1       walking on    0
6     2   to the left of    9
7     3         boarding    0
8     3   to the left of    9
9     3          wearing   15
10    4   to the left of   13
11    5               of    0
12    6               of    0
13    7          wearing    2
14    7         boarding    0
15    7   to the left of    9
16    8   to the left of   10
17    8   to the left of   11
18    9  to the right of    7
19    9  to the right of    2
20    9  to the right of    3
21   10  to the right of    8
22   10  to the right of    1
23   11       sitting in    0
24   11  to the right of    8
25   11  to the right of    1
26   13   to the left of   14
27   13  to the right of    4
28   13         boarding    0
29   13             near    0
30   14  to the right of   13
31   14               of    0