How large is the white house?
The house is large.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of   10
2     1  to the right of   10
3     2   to the left of    6
4     2   to the left of    0
5     4  to the right of    6
6     6   to the left of    4
7     6  to the right of    2
8     6  to the right of   10
9     6   to the left of    9
10    7  to the right of    8
11    8   to the left of    7
12    9  to the right of    6
13   10   to the left of   11
14   10   to the left of    0
15   10   to the left of    1
16   10   to the left of    6
17   11  to the right of   10