Is there a backpack to the left of the person that is to the left of the food?
Yes, there is a backpack to the left of the girl.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of    2
2     0   to the left of   15
3     0  to the right of   12
4     0  to the right of    7
5     0   to the left of    3
6     0  to the right of    8
7     0   to the left of   14
8     0  to the right of    9
9     1   to the left of   11
10    1   to the left of    9
11    1   to the left of   12
12    1   to the left of    2
13    2   to the left of    8
14    2  to the right of    1
15    2   to the left of   13
16    2   to the left of   11
17    2   to the left of    9
18    2   to the left of    7
19    2   to the left of    0
20    2          wearing   12
21    3  to the right of    0
22    3  to the right of   11
23    3  to the right of   15
24    4  to the right of    0
25    4  to the right of   11
26    4  to the right of   15
27    7  to the right of    2
28    7   to the left of    0
29    8  to the right of    2
30    8   to the left of    0
31    9   to the left of    0
32    9  to the right of    1
33    9  to the right of    2
34   10   to the left of   11
35   11  to the right of   10
36   11  to the right of    1
37   11   to the left of    4
38   11   to the left of    3
39   11  to the right of   12
40   11  to the right of    2
41   11         carrying   10
42   12  to the right of    1
43   12   to the left of    0
44   12   to the left of   11
45   13  to the right of    2
46   14  to the right of    0
47   15   to the left of    3
48   15   to the left of    4
49   15  to the right of    0