Does this train look blue?
Yes, the train is blue.
    src        edge_attr  dst
0     0               by   16
1     0  to the right of   10
2     0  to the right of   15
3     0  to the right of    1
4     0  to the right of    2
5     1   to the left of    0
6     1               by    2
7     1   to the left of   10
8     1   to the left of    2
9     2   to the left of   10
10    2   to the left of   12
11    2   to the left of    0
12    2  to the right of    1
13    3   to the left of   13
14    4   to the left of   13
15    5   to the left of   12
16    5  to the right of    6
17    6   to the left of   12
18    6  to the right of   11
19    6             near    7
20    6  to the right of    9
21    6   to the left of    8
22    6   to the left of    7
23    6   to the left of    5
24    6  to the right of   14
25    6          next to    7
26    7  to the right of   13
27    7   to the left of   12
28    7  to the right of    6
29    7             near    6
30    8  to the right of    6
31    8   to the left of   12
32    9   to the left of    6
33   10  to the right of    1
34   10  to the right of    2
35   10  to the right of   13
36   10   to the left of    0
37   10   to the left of   12
38   11   to the left of    6
39   12  to the right of   15
40   12  to the right of   10
41   12  to the right of    8
42   12  to the right of    7
43   12  to the right of    6
44   12  to the right of    5
45   12  to the right of    2
46   12          next to   16
47   13  to the right of    4
48   13  to the right of   14
49   13  to the right of    3
50   13   to the left of    7
51   13   to the left of   10
52   14   to the left of    6
53   14   to the left of   13
54   15               on   16
55   15   to the left of    0
56   15   to the left of   12
57   16             near   12