What place is shown?
It is an ocean.
    src        edge_attr  dst
0     0               in   15
1     0   to the left of   10
2     0   to the left of    2
3     0               on   14
4     0   to the left of    9
5     2  to the right of   10
6     2  to the right of    9
7     2  to the right of    0
8     6   to the left of    9
9     7   to the left of    8
10    8  to the right of   13
11    8  to the right of    7
12    8  to the right of   12
13    9   to the left of    2
14    9  to the right of    6
15    9  to the right of    0
16   10   to the left of    2
17   10  to the right of    0
18   10         carrying    1
19   12   to the left of    8
20   12               in   13
21   13   to the left of    8