What is the bear sitting next to?
The bear is sitting next to the tree.
    src        edge_attr  dst
0     1  to the right of    4
1     2   to the left of    8
2     2  to the right of    4
3     4            below   13
4     4           behind   16
5     4       underneath   13
6     4   to the left of    2
7     4   to the left of    1
8     4   to the left of   17
9     4   to the left of   12
10    4   to the left of   18
11    5  to the right of   19
12    5   to the left of   22
13    6   to the left of    9
14    6   to the left of   16
15    7  to the right of   13
16    7  to the right of    8
17    8  to the right of    2
18    8   to the left of    7
19    9  to the right of    6
20    9  to the right of   10
21   10   to the left of   16
22   10   to the left of    9
23   11   to the left of   15
24   12  to the right of    4
25   13   to the left of    7
26   13               on   10
27   13            above    4
28   15             near   16
29   15  to the right of   11
30   16  sitting next to   11
31   16               on   10
32   16  to the right of    6
33   16      in front of    4
34   16  to the right of   10
35   16       walking on   10
36   16          next to   15
37   17  to the right of    4
38   18  to the right of    4
39   19   to the left of    5
40   19   to the left of   21
41   21  to the right of   19
42   22  to the right of    5