Which place is it?
It is a beach.
    src        edge_attr  dst
0     0  to the right of    7
1     1               of    5
2     1  to the right of    4
3     2               of    2
4     3  to the right of    4
5     3               of    5
6     4  to the right of    9
7     4  to the right of    6
8     4   to the left of    1
9     4   to the left of    3
10    5       walking on    8
11    6   to the left of    4
12    7   to the left of    0
13    9   to the left of    4
14   10               of    5