Is the wall the same color as the clock?
No, the clock is green and the wall is white.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of   12
2     2   to the left of   12
3     2  to the right of    7
4     3   to the left of   12
5     3   to the left of    4
6     3   to the left of    6
7     4  to the right of    3
8     4  to the right of    6
9     4   to the left of   12
10    5  to the right of    8
11    5  to the right of    7
12    5   to the left of   12
13    6   to the left of    4
14    6   to the left of   12
15    6  to the right of    3
16    7   to the left of   11
17    7   to the left of    5
18    7   to the left of    2
19    8   to the left of    5
20    8   to the left of   11
21    9   to the left of   12
22   10   to the left of   11
23   11  to the right of    7
24   11  to the right of    8
25   11  to the right of   10
26   11   to the left of   12
27   12  to the right of   13
28   12  to the right of   11
29   12  to the right of    9
30   12  to the right of    6
31   12  to the right of    5
32   12  to the right of    2
33   12  to the right of    1
34   12  to the right of    4
35   12  to the right of    3
36   12  to the right of    0
37   13   to the left of   12