Do you see any pine trees on the mountain?
No, there are people on the mountain.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of   15
2     1   to the left of    2
3     1   to the left of   14
4     1   to the left of    3
5     1  to the right of   12
6     1   to the left of    7
7     2  to the right of    3
8     2  to the right of    1
9     2  to the right of    5
10    2  to the right of    9
11    2  to the right of    7
12    3  to the right of    9
13    3  to the right of    1
14    3   to the left of    2
15    5   to the left of    2
16    7   to the left of    2
17    7  to the right of    9
18    7  to the right of    1
19    8   to the left of   11
20    8   to the left of   15
21    9   to the left of   14
22    9   to the left of    3
23    9   to the left of    7
24    9   to the left of    2
25   11  to the right of    0
26   11  to the right of    8
27   12   to the left of    1
28   13               on   10
29   14  to the right of    1
30   14  to the right of    9
31   14       walking on   10
32   15  to the right of    8
33   15  to the right of    0