What is common to the gate and the hose?
The color, both the gate and the hose are green.
    src        edge_attr  dst
0     0   to the left of   11
1     1   to the left of    3
2     1  to the right of   11
3     1  to the right of   10
4     2   to the left of    5
5     2  to the right of   14
6     2   to the left of    7
7     3  to the right of   10
8     3  to the right of    1
9     3  to the right of   12
10    3  to the right of   13
11    3   to the left of    6
12    3  to the right of   16
13    3   to the left of    9
14    4  to the right of    7
15    5  to the right of   18
16    5  to the right of    2
17    5  to the right of   17
18    5      in front of   17
19    6  to the right of    3
20    7  to the right of   17
21    7  to the right of   14
22    7   to the left of    4
23    7  to the right of    2
24    7  to the right of   12
25    9  to the right of    3
26   10   to the left of    1
27   10   to the left of    3
28   10  to the right of   11
29   11   to the left of    1
30   11  to the right of    0
31   11   to the left of   10
32   12   to the left of    7
33   12   to the left of    3
34   13   to the left of    3
35   14   to the left of    7
36   14   to the left of    2
37   14   to the left of   18
38   14               in    8
39   15  to the right of   18
40   15  to the right of   17
41   16   to the left of    3
42   17   to the left of   15
43   17           behind    5
44   17   to the left of    5
45   17   to the left of    7
46   18   to the left of   15
47   18  to the right of   14
48   18   to the left of    5