What is under the glass on the table?
The mat is under the glass.
    src        edge_attr  dst
0     0             near   11
1     0  to the right of   15
2     0  to the right of    2
3     1  to the right of    3
4     1  to the right of   16
5     1        on top of   10
6     2   to the left of   11
7     2   to the left of    0
8     3  to the right of   12
9     3   to the left of    4
10    3   to the left of    9
11    3   to the left of    1
12    4            above    7
13    4               on   10
14    4  to the right of   16
15    4  to the right of    3
16    5  to the right of   11
17    5  to the right of    6
18    5  to the right of   14
19    5  to the right of   13
20    6               in   14
21    6   to the left of    5
22    7            under    4
23    8             near   15
24    9               in    1
25    9  to the right of    3
26    9  to the right of   16
27   11  to the right of   15
28   11   to the left of    5
29   11  to the right of    2
30   11   to the left of   13
31   11             near    0
32   12   to the left of    3
33   12   to the left of   16
34   13  to the right of   15
35   13   to the left of    5
36   13  to the right of   11
37   14   to the left of    5
38   15   to the left of   11
39   15             near    8
40   15   to the left of   13
41   15   to the left of    0
42   16   to the left of    1
43   16   to the left of    9
44   16   to the left of    4
45   16  to the right of   12