How large is the open bag?
The bag is large.
    src        edge_attr  dst
0     0  to the right of   10
1     0   to the left of    3
2     0   to the left of    2
3     1  to the right of   10
4     2  to the right of    0
5     2  to the right of    3
6     2  to the right of    4
7     2  to the right of   11
8     3  to the right of   10
9     3   to the left of    2
10    3  to the right of    0
11    4               of    9
12    4  to the right of   10
13    4   to the left of    2
14    5   to the left of   12
15    5  to the right of   10
16    7       sitting on    1
17    8               of    9
18    9  to the right of   10
19    9      sleeping in    7
20    9           inside    7
21    9               in    7
22   10   to the left of    9
23   10   to the left of    4
24   10   to the left of   12
25   10   to the left of    0
26   10   to the left of    3
27   10   to the left of    1
28   10   to the left of    5
29   10   to the left of   11
30   11   to the left of    2
31   11  to the right of   10
32   12               of    9
33   12  to the right of    5
34   12  to the right of   10