Are there any umbrellas?
No, there are no umbrellas.
   src        edge_attr  dst
0    1        parked on    0
1    1   to the left of    6
2    1   to the left of    5
3    4       walking in    2
4    5             near    6
5    5  to the right of    1
6    6  to the right of    1
7    6          next to    5