Which place is pictured, a river or an ocean?
It is a river.
    src        edge_attr  dst
0     0   to the left of   17
1     0   to the left of    9
2     2   to the left of    9
3     2   to the left of   17
4     4         entering    1
5     4  to the right of    5
6     4   to the left of   12
7     4   to the left of   16
8     5               by    1
9     5   to the left of    8
10    5   to the left of    4
11    5   to the left of    7
12    6   to the left of   12
13    6   to the left of   16
14    7  to the right of   13
15    7  to the right of   15
16    7  to the right of    5
17    7  to the right of   10
18    8  to the right of   15
19    8  to the right of    5
20    9  to the right of    2
21    9  to the right of    0
22   10  to the right of   18
23   10   to the left of    7
24   10   to the left of   14
25   11               on    3
26   11        parked on    0
27   12   to the left of   16
28   12  to the right of    4
29   12  to the right of    6
30   13         crossing    1
31   13   to the left of   15
32   13   to the left of    7
33   14  to the right of   10
34   15   to the left of    8
35   15   to the left of    7
36   15  to the right of   13
37   16  to the right of    4
38   16  to the right of    6
39   16  to the right of   12
40   17  to the right of    0
41   17  to the right of    2
42   18   to the left of   10