What is the picture hung on?
The picture is hung on the wall.
     src        edge_attr  dst
0      0  to the right of   15
1      0  to the right of   11
2      0             near   20
3      1        on top of   11
4      1            above   11
..   ...              ...  ...
108   20  to the right of   15
109   20            above   21
110   21       underneath   20
111   21  to the right of   15
112   21  to the right of   11

[113 rows x 3 columns]