Which kind of furniture is gray?
The furniture is a sofa.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of    7
2     0  to the right of   10
3     0  to the right of   15
4     0  to the right of    1
..  ...              ...  ...
57   16   to the left of   11
58   16   to the left of   13
59   17   to the left of   13
60   17               in    3
61   17   to the left of   11

[62 rows x 3 columns]