Is the airplane gray or orange?
The airplane is orange.
    src        edge_attr  dst
0     1               on    0
1     1  to the right of    5
2     1  to the right of    4
3     2               on    4
4     2   to the left of    5
5     3  to the right of    7
6     4               on    6
7     4   to the left of    1
8     5  to the right of    2
9     5   to the left of    1
10    6  to the right of    7
11    7   on the side of    4
12    7   to the left of    6
13    7   to the left of    3