Does the tree have a different color than the folding chair?
Yes, the folding chair is red and the tree is green.
    src        edge_attr  dst
0     0   to the left of    9
1     1   to the left of   11
2     2       leaning on    4
3     4  to the right of   11
4     4  to the right of    7
5     5               on    4
6     5  to the right of   11
7     7   to the left of    4
8     9  to the right of    0
9    11  to the right of    1
10   11   to the left of    4
11   11   to the left of    5