Is the path wet?
Yes, the path is wet.
    src    edge_attr  dst
0     0           on    2
1     0         near    1
2     0       behind    1
3     0         near    2
4     0         near    3
5     0  in front of    3
6     1         near    0
7     1         near    3
8     1         near    2
9     2         near    3
10    2         near    1
11    2         near    0
12    3         near    2
13    3         near    0
14    3           on    2
15    3         near    1
16    3       behind    0
17    4           on    0