Are there blankets in this picture?
Yes, there is a blanket.
    src        edge_attr  dst
0     1  to the right of    6
1     1  to the right of    5
2     1  to the right of   11
3     5   to the left of    8
4     5   to the left of   11
5     5   to the left of    1
6     6   to the left of    1
7     6   to the left of    9
8     8  to the right of    5
9     8               in    0
10    9  to the right of    6
11   11  to the right of    5
12   11   to the left of    1