What animal is in front of the tree?
The giraffe is in front of the tree.
    src        edge_attr  dst
0     0      in front of    2
1     1   to the left of    7
2     1   to the left of    4
3     2           behind    0
4     3   to the left of    7
5     3   to the left of    4
6     4  to the right of    1
7     4  to the right of    5
8     4  to the right of    3
9     5   to the left of    7
10    5   to the left of    4
11    7  to the right of    1
12    7  to the right of    5
13    7  to the right of    3