Are the flowers behind the sign?
Yes, the flowers are behind the sign.
    src        edge_attr  dst
0     0               on    4
1     0   to the left of    9
2     0   to the left of    8
3     1   to the left of   10
4     1   to the left of    4
5     2           behind    4
6     3           behind    4
7     3             near    4
8     4      in front of    2
9     4      in front of    7
10    4      in front of    3
11    4             near    3
12    4               on   10
13    4               by    7
14    4  to the right of    1
15    4  to the right of    6
16    4  to the right of    7
17    6   to the left of    4
18    7               on   12
19    7               on    1
20    7   to the left of    4
21    7           behind    4
22    8  to the right of    9
23    8  to the right of    0
24    8               on    4
25    9  to the right of    0
26    9   to the left of    8
27    9               on    4
28   10  to the right of    1