Where is the boy?
The boy is on the snow.
    src        edge_attr  dst
0     0   to the left of    4
1     3  to the right of    6
2     4  to the right of    6
3     4  to the right of    0
4     5   to the left of    6
5     6   to the left of    3
6     6  to the right of    5
7     6   to the left of    4
8     8          wearing    6
9     8          wearing    2
10    8               on    3
11    8          wearing    1