What is the couple on?
The couple is on the counter.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of    6
2     0            above    8
3     0   to the left of   12
4     1   to the left of   11
5     1               on    0
6     1  to the right of   14
7     1  to the right of    3
8     2   to the left of   12
9     2   to the left of    6
10    2   to the left of   11
11    3   to the left of    1
12    3   to the left of    7
13    3   to the left of    5
14    3               in   14
15    4               in    5
16    5  to the right of    3
17    5  to the right of   14
18    6               on    5
19    6  to the right of    0
20    6  to the right of    2
21    7  to the right of    3
22    7  to the right of   14
23    8            below    0
24    9   to the left of   10
25   10  to the right of    9
26   11  to the right of    2
27   11  to the right of    1
28   11  to the right of    0
29   11  to the right of   13
30   12  to the right of   13
31   12  to the right of    2
32   12  to the right of    0
33   13               on    0
34   13   to the left of   11
35   13               of   13
36   13   to the left of   12
37   14               on   14
38   14   to the left of    5
39   14   to the left of    1
40   14   to the left of    7