Is this a sofa or a desk?
This is a sofa.
    src        edge_attr  dst
0     0  to the right of    4
1     1  to the right of    4
2     2  to the right of   10
3     3  to the right of    4
4     4   to the left of    0
5     4   to the left of    3
6     4   to the left of    1
7     4   to the left of    9
8     4  to the right of   10
9     9  to the right of    4
10   10   to the left of    2
11   10   to the left of    4