What is the cup made of?
The cup is made of glass.
    src        edge_attr  dst
0     0               on    4
1     0   to the left of    7
2     0   to the left of    1
3     1       sitting at    4
4     1      in front of    2
5     1  to the right of    2
6     1   to the left of    5
7     1  to the right of   13
8     1  to the right of    8
9     1   to the left of    6
10    1  to the right of    0
11    1  to the right of   10
12    1  to the right of    9
13    2   to the left of    1
14    2  to the right of   13
15    2  to the right of   10
16    2   to the left of   14
17    2           behind    1
18    3      filled with   12
19    5  to the right of    6
20    5  to the right of    1
21    5  to the right of   14
22    6  to the right of    1
23    6   to the left of    5
24    7               on    4
25    7  to the right of    0
26    7   to the left of   12
27    8       looking at    7
28    8          wearing   13
29    8   to the left of    1
30    8   to the left of   14
31    9   to the left of   11
32    9   to the left of    1
33   10   to the left of    2
34   10   to the left of    1
35   11  to the right of    9
36   12               in    3
37   12  to the right of    7
38   13   to the left of    1
39   13   to the left of    2
40   14       sitting at    4
41   14  to the right of    2
42   14  to the right of    8
43   14   to the left of    5