Which color is the train that is in the middle of the photo?
The train is yellow.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    6
2     0   to the left of    2
3     0   to the left of    4
4     1   to the left of    2
5     2               in   10
6     2  to the right of    1
7     2  to the right of    0
8     3   to the left of    4
9     3   to the left of    7
10    4  to the right of    0
11    4  to the right of    3
12    4   to the left of    9
13    4   to the left of   11
14    5   to the left of    9
15    5   to the left of   11
16    6  to the right of    0
17    7  to the right of    0
18    7  to the right of    3
19    7   to the left of   11
20    7   to the left of    9
21    8  to the right of    9
22    9  to the right of    4
23    9  to the right of    5
24    9  to the right of    7
25    9   to the left of    8
26   11  to the right of    7
27   11  to the right of    4
28   11  to the right of    5