Do the train and the sky have a different colors?
No, both the train and the sky are blue.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   12
2     0  to the right of   14
3     0  to the right of    1
4     1   to the left of   14
5     1   to the left of   13
6     1   to the left of   12
7     1   to the left of    0
8     1   to the left of    3
9     2   to the left of    9
10    2       sitting on    6
11    2  to the right of    7
12    2  to the right of    8
13    2  to the right of   12
14    3   to the left of   12
15    3  to the right of    1
16    3               on    4
17    4   to the left of   12
18    4   to the left of   10
19    6  to the right of   12
20    6  to the right of    8
21    6  to the right of    7
22    6   to the left of    9
23    7   to the left of    2
24    7   to the left of    6
25    8   to the left of    9
26    8   to the left of    6
27    8   to the left of    2
28    8  on the front of   12
29    9  to the right of   12
30    9  to the right of    6
31    9  to the right of    2
32    9  to the right of    8
33   10  to the right of    4
34   12   to the left of    6
35   12   to the left of    2
36   12  to the right of    0
37   12   to the left of    9
38   12  to the right of   13
39   12  to the right of   14
40   12  to the right of    3
41   12  to the right of    4
42   12  to the right of    1
43   13  to the right of    0
44   13  to the right of    1
45   13   to the left of   12
46   14  to the right of    1
47   14   to the left of   12
48   14   to the left of    0