Do the oven and the fan have a different colors?
No, both the oven and the fan are white.
    src        edge_attr  dst
0     0          next to    7
1     0             near    7
2     0  to the right of    5
3     0  to the right of    3
4     0             near    1
5     1             near    0
6     1             near    2
7     1   to the left of    2
8     2          next to    1
9     2  to the right of    1
10    3   to the left of    7
11    3   to the left of    0
12    4   to the left of    6
13    4   to the left of    5
14    4   to the left of    8
15    5             near    8
16    5  to the right of    6
17    5  to the right of    8
18    5   to the left of    0
19    5  to the right of    4
20    6  to the right of    4
21    6   to the left of    5
22    7  to the right of    3
23    7             near    0
24    8             near    5
25    8          next to    5
26    8   to the left of    5
27    8  to the right of    4