Is the sheep on top of the hill white and clean?
No, the sheep is white but dirty.
    src        edge_attr  dst
0     0   to the left of    6
1     2           behind   14
2     4               on    5
3     4  to the right of    9
4     4        on top of    5
5     6  to the right of   13
6     6  to the right of   11
7     6  to the right of    7
8     6  to the right of    0
9     7   to the left of    6
10    9   to the left of    4
11   11   to the left of    6
12   13   to the left of    6
13   14      in front of    2