How tall is the fence to the left of the other fence?
The fence is tall.
    src        edge_attr  dst
0     0   to the left of    2
1     1           inside    3
2     1   sitting behind   12
3     1          driving    3
4     1   sitting inside    3
5     1  to the right of    8
6     1  to the right of    4
7     2  to the right of    0
8     2  to the right of    6
9     2           behind   11
10    2      in front of    7
11    4           inside    3
12    4   sitting inside    3
13    4   to the left of   12
14    4  to the right of   10
15    4   to the left of    1
16    4   to the left of    5
17    5  to the right of    8
18    5  to the right of    4
19    6        on top of    3
20    6   to the left of    2
21    6   to the left of   13
22    6   to the left of    7
23    7           behind    2
24    7   to the left of   11
25    7  to the right of    6
26    8   to the left of    1
27    8   to the left of    5
28   10   to the left of    4
29   10   to the left of   13
30   11  to the right of    7
31   11      in front of    2
32   12  to the right of    4
33   13               of    3
34   13  to the right of    6
35   13  to the right of   10