Which color is the dock?
The dock is blue.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    2
2     0   to the left of    1
3     0   to the left of    4
4     0   to the left of    3
5     1  to the right of    0
6     1  to the right of    6
7     1  to the right of    2
8     1  to the right of   11
9     1  to the right of    7
10    2   to the left of    1
11    2   to the left of    0
12    2   to the left of    4
13    2   to the left of    3
14    2   to the left of    7
15    3  to the right of   11
16    3  to the right of    7
17    3  to the right of    0
18    3   to the left of    4
19    3  to the right of    2
20    4  to the right of    0
21    4  to the right of    2
22    4  to the right of    3
23    4  to the right of    7
24    4  to the right of    9
25    4  to the right of   11
26    4  to the right of   12
27    4   to the left of   14
28    6   to the left of    1
29    7  to the right of    0
30    7   to the left of    4
31    7   to the left of    3
32    7  to the right of    2
33    7   to the left of    1
34    7      standing on   12
35    9   to the left of   14
36    9   to the left of   10
37    9   to the left of    4
38   10  to the right of   13
39   10  to the right of    9
40   11       sitting on   12
41   11   to the left of    1
42   11   to the left of    4
43   11        riding on   12
44   11   to the left of    3
45   12   to the left of    4
46   13   to the left of   10
47   14  to the right of    4
48   14  to the right of    9