Is the cup different in color than the shelf?
Yes, the cup is blue and the shelf is white.
    src        edge_attr  dst
0     1  to the right of    3
1     1        on top of    5
2     1  to the right of    7
3     1  to the right of    4
4     2        on top of    5
5     2  to the right of    7
6     2  to the right of    3
7     2  to the right of    4
8     3   to the left of    1
9     3        on top of    5
10    3   to the left of    9
11    3   to the left of    2
12    3   to the left of   10
13    4   to the left of    1
14    4   to the left of    2
15    4           inside    3
16    5       mounted on    6
17    7   to the left of    2
18    7   to the left of    1
19    9  to the right of    3
20   10  to the right of    3