Is the grass behind a bench?
Yes, the grass is behind a bench.
    src        edge_attr  dst
0     0   to the left of    3
1     2           behind    4
2     2   to the left of    4
3     3  to the right of    0
4     4      in front of    2
5     4      in front of   10
6     4      in front of   11
7     4      in front of    9
8     4  to the right of    2
9     4   to the left of    9
10    4   to the left of    8
11    5           behind    4
12    8  to the right of    4
13    9           behind    4
14    9  to the right of    4
15    9  to the right of   10
16    9  to the right of   11
17   10           behind    4
18   10  to the right of   11
19   10  to the right of   12
20   10   to the left of    9
21   11           behind    4
22   11   to the left of   10
23   11  to the right of   12
24   11   to the left of    9
25   12   to the left of   11
26   12   to the left of   10