What does the sign hang from?
The sign hangs from the ceiling.
    src        edge_attr  dst
0     0     hanging from    3
1     1  to the right of    8
2     1   to the left of    2
3     2  to the right of    9
4     2  to the right of    1
5     4  to the right of    8
6     5               of    1
7     6   to the left of    9
8     6               on    7
9     7   to the left of    9
10    8   to the left of    4
11    8   to the left of    1
12    9  to the right of    6
13    9   to the left of    2
14    9  to the right of    7