Is there a cup on the desk?
No, there is a pencil on the desk.
    src        edge_attr  dst
0     1  to the right of   11
1     2  to the right of   18
2     2  to the right of   13
3     2  to the right of    3
4     2  to the right of    9
5     3   to the left of    2
6     4   to the left of    5
7     5  to the right of   10
8     5  to the right of    4
9     5               on    8
10    6   to the left of   18
11    6               on    9
12    7               on    9
13    9   to the left of    2
14    9   to the left of   12
15   10   to the left of    5
16   10   to the left of   18
17   11   to the left of   14
18   11   to the left of   15
19   11   to the left of    1
20   12  to the right of    9
21   13   to the left of    2
22   14               on    0
23   14  to the right of   11
24   15  to the right of   11
25   18   to the left of    2
26   18  to the right of   10
27   18  to the right of    6