What place does this represent?
It represents the ocean.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of    5
2     0  to the right of   13
3     0  to the right of    3
4     0   to the left of    4
5     0  to the right of    6
6     0  to the right of    7
7     0  to the right of    2
8     1   to the left of    4
9     2  to the right of    3
10    2  to the right of    7
11    2  to the right of    6
12    2   to the left of    0
13    2  to the right of    8
14    3  to the right of    8
15    3   to the left of    0
16    3  to the right of    7
17    3   to the left of    2
18    3  to the right of    6
19    4  to the right of    6
20    4  to the right of   14
21    4  to the right of    0
22    4  to the right of    1
23    4  to the right of   13
24    5   to the left of    0
25    5  to the right of    6
26    6   to the left of    2
27    6   to the left of    3
28    6   to the left of    5
29    6   to the left of    8
30    6   to the left of    7
31    6   to the left of    4
32    6   to the left of   13
33    6   to the left of    0
34    6   to the left of   14
35    7   to the left of    0
36    7   to the left of    3
37    7   to the left of    2
38    7  to the right of    6
39    7  to the right of    8
40    8   to the left of    0
41    8  to the right of    6
42    8   to the left of    7
43    8   to the left of    2
44    8   to the left of    3
45   11   on the side of   13
46   13      floating on   12
47   13  to the right of    6
48   13   to the left of    4
49   13   to the left of    0
50   13               in   12
51   14  to the right of    6
52   14   to the left of    4