Is the computer to the left or to the right of the chair?
The computer is to the left of the chair.
    src        edge_attr  dst
0     0   to the left of    4
1     0               on    3
2     0   to the left of   16
3     1  to the right of    5
4     1  to the right of    6
5     1               on    3
6     1  to the right of   17
7     2               on    3
8     2   to the left of    5
9     2   to the left of    6
10    4               on    3
11    4   to the left of   16
12    4  to the right of    0
13    5  to the right of   11
14    5   to the left of    1
15    5  to the right of    2
16    5               of   12
17    5               on    3
18    6   to the left of    1
19    6  to the right of    2
20    7  to the right of   12
21    7  to the right of   17
22   10  to the right of   16
23   11   to the left of    5
24   12   to the left of    7
25   14  to the right of   17
26   14               on    3
27   14  to the right of   15
28   15               on    3
29   15   to the left of   14
30   15  to the right of   16
31   16   to the left of   10
32   16   to the left of   15
33   16  to the right of    0
34   16  to the right of    4
35   17   to the left of    1
36   17   to the left of   14
37   17   to the left of    7
38   18               on   17