What is the cat in front of?
The cat is in front of the bookshelf.
    src        edge_attr  dst
0     2  to the right of    8
1     2  to the right of    6
2     2  to the right of   11
3     6   to the left of    2
4     6   to the left of    8
5     6   to the left of   10
6     7  to the right of    9
7     8   to the left of    2
8     8  to the right of   11
9     8  to the right of    6
10    9               on   12
11    9   to the left of    7
12    9            above   12
13    9      in front of   10
14    9         lying on   13
15   10  to the right of    6
16   10  to the right of   11
17   10               on   10
18   10             near   13
19   10           behind    9
20   10  leaning against   11
21   11   to the left of    2
22   11   to the left of    8
23   11   to the left of   10
24   12            under    9
25   13          next to   10