Do the rocks look blue?
Yes, the rocks are blue.
    src        edge_attr  dst
0     0           behind    7
1     0  to the right of    3
2     0  to the right of    5
3     0  to the right of    4
4     1  to the right of    5
5     1  to the right of    6
6     2  to the right of    4
7     2  to the right of    3
8     3   to the left of    2
9     3   to the left of    0
10    3   to the left of    7
11    4   to the left of    7
12    4   to the left of    2
13    4           behind    7
14    4   to the left of    0
15    5   to the left of    0
16    5   to the left of    1
17    5   to the left of    6
18    5           behind    7
19    5   to the left of    7
20    6  to the right of    5
21    6   to the left of    1
22    7               on    8
23    7      in front of    4
24    7      in front of    0
25    7  to the right of    3
26    7  to the right of    5
27    7  to the right of    4