What is the plate on?
The plate is on the tablecloth.
    src        edge_attr  dst
0     2  to the right of    4
1     2  to the right of   10
2     2  to the right of    5
3     3               on   11
4     4  to the right of    7
5     4   to the left of    2
6     4   to the left of    6
7     5   to the left of    6
8     5   to the left of    2
9     5               on   11
10    6  to the right of    4
11    6  to the right of   10
12    6  to the right of    5
13    7               on    5
14    7   to the left of    4
15    9           beside    7
16   10               on   11
17   10   to the left of    6
18   10   to the left of    2