Are there white computers or books?
Yes, there is a white computer.
    src        edge_attr  dst
0     1   to the left of    6
1     1   to the left of    5
2     1   to the left of    7
3     2   to the left of    8
4     2   to the left of    7
5     2               on    0
6     2        on top of    0
7     2   to the left of    4
8     3   to the left of    7
9     4  to the right of    2
10    5   to the left of    8
11    5   to the left of    7
12    5  to the right of    1
13    6  to the right of    1
14    6   to the left of    7
15    7        on top of    0
16    7               on    0
17    7  to the right of    1
18    7  to the right of    3
19    7  to the right of    2
20    7  to the right of    6
21    7  to the right of    5
22    8  to the right of    5
23    8  to the right of    2