Who is in front of the water?
The boy is in front of the water.
    src        edge_attr  dst
0     1   to the left of    7
1     1   to the left of    3
2     1   to the left of    5
3     1   to the left of    4
4     3      in front of    6
5     3  to the right of    1
6     3   to the left of    4
7     3             near    6
8     3      standing on    0
9     3             with    4
10    3          holding    4
11    4  to the right of    3
12    4  to the right of    1
13    5  to the right of    1
14    6           behind    3
15    6             near    3
16    7  to the right of    1