Is the tray on the right side?
Yes, the tray is on the right of the image.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    6
2     0  to the right of   12
3     0  to the right of   11
4     1   to the left of    8
5     1  to the right of    6
6     1  to the right of   10
7     1  to the right of   12
8     3               on   13
9     3          reading   11
10    3   to the left of    8
11    3  to the right of   10
12    3   to the left of    9
13    3  to the right of   12
14    3  to the right of    6
15    4   to the left of    8
16    5  to the right of   11
17    5  to the right of   10
18    5  to the right of    6
19    6   to the left of    1
20    6   to the left of    3
21    6   to the left of    5
22    6   to the left of    8
23    6   to the left of   11
24    6   to the left of   12
25    6   to the left of    0
26    7  to the right of   14
27    8  to the right of    3
28    8  to the right of    4
29    8  to the right of   11
30    8  to the right of   10
31    8  to the right of    6
32    8  to the right of   14
33    8  to the right of    1
34    8  to the right of   12
35    9  to the right of    3
36   10   to the left of    0
37   10   to the left of    1
38   10   to the left of    8
39   10   to the left of   11
40   10   to the left of    3
41   10   to the left of    5
42   11  to the right of   12
43   11   to the left of    0
44   11   to the left of    5
45   11   to the left of    8
46   11  to the right of    6
47   11  to the right of   10
48   12   to the left of    8
49   12  to the right of    6
50   12   to the left of    0
51   12   to the left of    3
52   12   to the left of    1
53   12   to the left of   11
54   14   to the left of    7
55   14   to the left of    8