Is the car to the right or to the left of the bus?
The car is to the left of the bus.
    src        edge_attr  dst
0     0  to the right of    1
1     0   to the left of    9
2     0   to the left of    2
3     0  to the right of    6
4     0  to the right of   12
5     1   to the left of    9
6     1  to the right of   11
7     1   to the left of    0
8     1   to the left of    2
9     2  to the right of    6
10    2  to the right of   10
11    2  to the right of    1
12    2  to the right of   12
13    2  to the right of    0
14    4  to the right of   10
15    4  to the right of    6
16    6   to the left of    2
17    6   to the left of    4
18    6   to the left of    0
19    6  to the right of   11
20    6   to the left of    9
21    9  to the right of    6
22    9  to the right of    0
23    9  to the right of    1
24   10   to the left of    2
25   10   to the left of    4
26   11               on   10
27   11   to the left of    1
28   11   to the left of    6
29   12   to the left of    0
30   12   to the left of    2