Are there either vases or traffic signs?
No, there are no vases or traffic signs.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    6
2     0  to the right of   10
3     1  to the right of    5
4     1   to the left of    2
5     2  to the right of    1
6     2  to the right of    5
7     3  to the right of    6
8     3  to the right of   12
9     3  to the right of    9
10    4  to the right of    5
11    4           behind    5
12    5      in front of    4
13    5   to the left of    1
14    5   to the left of    4
15    5   to the left of    2
16    6   to the left of    3
17    6   to the left of    0
18    9   to the left of    3
19    9   to the left of    0
20   10   to the left of    0
21   12   to the left of    3