On which side are the cones?
The cones are on the left of the image.
    src        edge_attr  dst
0     0               of   12
1     0   to the left of   15
2     1   to the left of    2
3     1   to the left of    3
4     1   to the left of    7
5     2  to the right of    3
6     2  to the right of    7
7     2   to the left of   14
8     2  to the right of    1
9     3      standing by    2
10    3  to the right of    1
11    3   to the left of    2
12    4  to the right of   14
13    5   to the left of   18
14    5   to the left of   13
15    5   to the left of   12
16    5   to the left of   11
17    5   to the left of    8
18    6   to the left of   15
19    7  to the right of    1
20    7   to the left of    2
21    8  to the right of    5
22    8  to the right of    9
23    9   to the left of   11
24    9   to the left of   13
25    9           beside   12
26    9   to the left of   18
27    9   to the left of    8
28    9  to the right of   14
29   10   to the left of   15
30   10  to the right of   16
31   11  to the right of    5
32   11  to the right of    9
33   12  to the right of   14
34   12  to the right of    5
35   12  to the right of   16
36   12          holding   10
37   13  to the right of   18
38   13  to the right of    9
39   13  to the right of    5
40   14   to the left of    9
41   14  to the right of   16
42   14   to the left of   12
43   14   to the left of    4
44   14  to the right of    2
45   15  to the right of   10
46   15  to the right of    6
47   15  to the right of    0
48   16   to the left of   12
49   16   to the left of   14
50   16   to the left of   10
51   18  to the right of    9
52   18  to the right of    5
53   18   to the left of   13