Do you see either tissue boxes or flags there?
No, there are no tissue boxes or flags.
    src        edge_attr  dst
0     1   to the left of    7
1     1   to the left of    9
2     2  to the right of   12
3     2       sitting on    8
4     7   to the left of    9
5     7  to the right of    1
6     7  to the right of   11
7     9  to the right of    7
8     9  to the right of    1
9    10  to the right of   12
10   11          wearing    4
11   11   to the left of    7
12   12   to the left of    2
13   12   to the left of   10