Which appliance is not black, the oven or the refrigerator?
The refrigerator is not black.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    9
2     1   to the left of    6
3     2   to the left of    6
4     3   to the left of    4
5     3   to the left of   15
6     3          holding    2
7     3   to the left of   10
8     3   to the left of    6
9     4           inside    6
10    4  to the right of    3
11    4  to the right of    9
12    5  to the right of   12
13    5  to the right of    7
14    6  to the right of   14
15    6  to the right of    1
16    6  to the right of    9
17    6  to the right of    3
18    6  to the right of    2
19    6  to the right of    0
20    7   to the left of    5
21    7   to the left of   11
22    7   to the left of    8
23    8  to the right of    7
24    8  to the right of   11
25    8  to the right of   12
26    9   to the left of    6
27    9  to the right of    0
28    9   to the left of    4
29    9               by    6
30    9   to the left of   10
31   10  to the right of   14
32   10           inside    6
33   10  to the right of    9
34   10  to the right of    3
35   11   to the left of    8
36   11  to the right of   12
37   11  to the right of    7
38   12   to the left of    8
39   12   to the left of    5
40   12   to the left of   11
41   14   to the left of   10
42   14   to the left of    6
43   15           inside    6
44   15  to the right of    3