What makes up the round plate?
The plate is made of glass.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of    2
2     0   to the left of    5
3     1               of    7
4     1          full of    7
5     2   to the left of    0
6     2   to the left of    6
7     2   to the left of    4
8     4  to the right of    2
9     4  to the right of    8
10    4   to the left of    6
11    5  to the right of    0
12    6  to the right of    8
13    6  to the right of    4
14    6  to the right of    2
15    8   to the left of    0
16    8   to the left of    4
17    8   to the left of    6