In which part is the tray, the bottom or the top?
The tray is in the bottom of the image.
    src        edge_attr  dst
0     0               on   11
1     0  to the right of    2
2     0  to the right of    1
3     0  to the right of    5
4     0  to the right of    4
5     1   to the left of    0
6     1  to the right of    8
7     1   to the left of    5
8     2               on    6
9     2  to the right of    8
10    2   to the left of    0
11    4   to the left of    5
12    4   to the left of    0
13    4  to the right of    8
14    5   to the left of    0
15    5  to the right of    4
16    5  to the right of    1
17    5  to the right of    8
18    8   to the left of    2
19    8   to the left of    1
20    8   to the left of    4
21    8   to the left of    5
22   10               at   11
23   10            using    9