What is the toy above the pillow covered by?
The teddy bear is covered by the blanket.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    5
2     0   to the left of   11
3     0   to the left of    9
4     2         covering   12
5     2  to the right of   10
6     3   to the left of   13
7     4  to the right of    6
8     4  to the right of    9
9     4  to the right of   11
10    5  to the right of    0
11    6   to the left of    4
12    6  to the right of    0
13    7            under   12
14    7               on    1
15    7            below   12
16    9   to the left of    4
17    9  to the right of    0
18   10   to the left of    2
19   11  to the right of    0
20   11   to the left of    4
21   12         lying on    1
22   12          wearing    3
23   12       covered by    2
24   12            above    7
25   13  to the right of    3