Are the houses on the right side?
No, the houses are on the left of the image.
    src        edge_attr  dst
0     1  to the right of    8
1     2               of   10
2     2   to the left of    5
3     2   to the left of    6
4     2  to the right of    3
5     2   to the left of   18
6     3   to the left of   18
7     3   to the left of    2
8     3   to the left of    5
9     3   to the left of    4
10    4  to the right of    3
11    5   to the left of    6
12    5  to the right of    2
13    5  to the right of   10
14    5  to the right of    3
15    6  to the right of   13
16    6  to the right of    2
17    6  to the right of   17
18    6  to the right of    5
19    6  to the right of    7
20    6  to the right of   10
21    7   to the left of   17
22    7   to the left of    6
23    8   to the left of    1
24   10   to the left of   17
25   10   to the left of    5
26   10   to the left of    6
27   10   to the left of   18
28   13   to the left of    6
29   13  to the right of   15
30   13   to the left of   17
31   15   to the left of   13
32   15   to the left of   17
33   17  to the right of   10
34   17  to the right of    7
35   17   to the left of    6
36   17  to the right of   15
37   17  to the right of   13
38   18               on   17
39   18  to the right of    3
40   18   on the side of   11
41   18  to the right of   10
42   18  to the right of    2