What is on the shelf?
The vase is on the shelf.
    src        edge_attr  dst
0     5          next to   13
1     5             near   13
2     5  to the right of   12
3     5               on    1
4     5  to the right of    7
5     5  to the right of   13
6     7   to the left of    5
7     9   to the left of   12
8     9   to the left of   13
9    10           inside   13
10   10               in   13
11   11            above    4
12   11            above    8
13   12  to the right of    9
14   12   to the left of    5
15   13             with   10
16   13   to the left of    5
17   13  to the right of    9
18   13             near    5
19   13               on    6