Which material is used to make the container to the right of the book, glass or plastic?
The jar is made of glass.
    src        edge_attr  dst
0     0  to the right of   13
1     0               in   18
2     0   to the left of   17
3     0  to the right of    2
4     1   to the left of    8
5     2   to the left of    0
6     2  to the right of   13
7     2  to the right of    3
8     2   to the left of   17
9     3   to the left of    9
10    3   to the left of   11
11    3   to the left of    6
12    3   to the left of    2
13    3   to the left of   16
14    3   to the left of   14
15    3   to the left of   13
16    3   to the left of   12
17    4   to the left of   18
18    5  to the right of   10
19    5  to the right of   12
20    6  to the right of    3
21    8  to the right of    1
22    9  to the right of    3
23   10  to the right of   12
24   10   to the left of    5
25   11  to the right of    3
26   12   to the left of   10
27   12   to the left of    5
28   12  to the right of    3
29   12   to the left of   17
30   13   to the left of    2
31   13  to the right of    3
32   13   to the left of    0
33   13   to the left of   17
34   14  to the right of    3
35   16  to the right of    3
36   17  to the right of    0
37   17  to the right of   12
38   17  to the right of    2
39   17  to the right of   13
40   18  to the right of    4