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