What color is the motorbike?
The motorbike is green.
    src        edge_attr  dst
0     1  to the right of    5
1     2  to the right of    5
2     3   to the left of    5
3     3   to the left of    4
4     4  to the right of    3
5     5   to the left of    2
6     5  to the right of    3
7     5   to the left of    1
8     6   to the left of    8
9     7  to the right of   11
10    8  to the right of    6
11    8  to the right of   11
12   11   to the left of    7
13   11   to the left of    8