Do you see either a bike or a fence?
Yes, there is a fence.
    src        edge_attr  dst
0     0               by    9
1     0  to the right of    3
2     1   to the left of    2
3     1   to the left of    9
4     2  to the right of   10
5     2  to the right of    1
6     3  to the right of    7
7     3   to the left of    5
8     3  to the right of    4
9     3   to the left of    0
10    4   to the left of    3
11    4             near    6
12    5  to the right of    3
13    6  to the right of   10
14    6             near    4
15    7   to the left of    3
16    8   to the left of   11
17    9  to the right of   10
18    9  to the right of    1
19   10   to the left of    6
20   10   to the left of    9
21   10   to the left of    2
22   11  to the right of    8