Where are the pine trees?
The pine trees are on the mountain.
    src        edge_attr  dst
0     0               on    1
1     0             with    2
2     0          wearing    3
3     0          wearing    2
4     0          wearing   11
5     0  to the right of   10
6     0         carrying    2
7     1            below   13
8     2   to the left of    6
9     3  to the right of   10
10    4               on    8
11    4               on    9
12    6  to the right of    2
13    7  to the right of   10
14   10   to the left of    7
15   10   to the left of    0
16   10   to the left of    3
17   12               on    1
18   12   to the left of   13
19   13  to the right of   12