Are there any umbrellas?
Yes, there is an umbrella.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    7
2     0  to the right of   11
3     1  to the right of    7
4     1  to the right of    0
5     1  to the right of    4
6     1     hanging from    3
7     2  to the right of    8
8     2   to the left of    6
9     4   to the left of    1
10    5  to the right of    8
11    6  to the right of    2
12    6  to the right of    8
13    6  to the right of   10
14    7   to the left of    1
15    7  to the right of    0
16    8   to the left of    2
17    8   to the left of    5
18    8   to the left of    6
19   10   to the left of    6
20   10     hanging from    3
21   11   to the left of    0