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