Does the clock have black color?
No, the clock is white.
    src        edge_attr  dst
0     0            above   10
1     0       hanging on    1
2     0   to the left of    7
3     2  to the right of    5
4     2  to the right of    8
5     2  to the right of   10
6     2  to the right of    6
7     3   to the left of    6
8     3        on top of   10
9     3   to the left of    8
10    4           beside   10
11    4        on top of   11
12    4   to the left of    9
13    5   to the left of    2
14    6  to the right of    3
15    6   to the left of    2
16    6  to the right of    9
17    6   to the left of   12
18    7            above   12
19    7       hanging on    1
20    7  to the right of    0
21    8        on top of   10
22    8   to the left of    2
23    8  to the right of   11
24    8  to the right of    3
25    9  to the right of    4
26    9   to the left of    6
27    9  to the right of   11
28   10   to the left of    2
29   11   to the left of    8
30   11   to the left of    9
31   12   on the side of    1
32   12  to the right of    6
33   12           beside   10
34   12            below    7