Which kind of animal is lying on the bed?
The animal is a dog.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    8
2     0  to the right of   13
3     0  to the right of    7
4     2   to the left of    7
5     3               on    5
6     4   to the left of    9
7     6   to the left of    0
8     7  to the right of   12
9     7  to the right of    2
10    7   to the left of    0
11    8   to the left of    0
12    9  to the right of    4
13   10               on   14
14   11               of   13
15   12   to the left of    7
16   12               of   13
17   13               on    3
18   13               on    5
19   13         lying on    3
20   13   to the left of    0