What is the bicycle that looks black parked behind of?
The bicycle is parked behind the bench.
    src        edge_attr  dst
0     1   to the left of   12
1     1  to the right of   10
2     1   to the left of    5
3     1  to the right of   13
4     2   to the left of    3
5     2  to the right of    4
6     2  to the right of    7
7     3  to the right of    2
8     3             with    9
9     4   to the left of    2
10    4      in front of    7
11    5  to the right of    1
12    6               of    9
13    7   to the left of    2
14    7           behind    4
15    7   to the left of    8
16    7    parked behind    4
17    7       leaning on    4
18    8  to the right of    7
19    8       leaning on    4
20   10   on the side of   11
21   10   to the left of    1
22   12   on the side of   11
23   12  to the right of    1
24   13   to the left of    1