Is the color of the arrow different than that of the house?
Yes, the arrow is black and the house is white.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of   13
2     1   to the left of   13
3     2               on    7
4     2               on   10
5     2   to the left of   12
6     3  to the right of   11
7     3  to the right of    7
8     3  to the right of    8
9     4  to the right of    7
10    4  to the right of   11
11    4  to the right of    8
12    5  to the right of   16
13    5  to the right of   14
14    5               by   10
15    6   to the left of   12
16    6   to the left of    9
17    7   to the left of    3
18    7   to the left of    4
19    7   to the left of   13
20    7   to the left of    9
21    7  to the right of    0
22    7  to the right of   16
23    7  to the right of   14
24    7   to the left of   11
25    8               on    7
26    8  to the right of   16
27    8  to the right of   14
28    8   to the left of    4
29    8   to the left of    3
30    8   to the left of    9
31    8               on   10
32    9  to the right of    7
33    9  to the right of    8
34    9  to the right of   11
35    9  to the right of    6
36   11  to the right of   14
37   11   to the left of    3
38   11   to the left of    9
39   11  to the right of    7
40   11   to the left of    4
41   12  to the right of    6
42   12  to the right of    2
43   13  to the right of    1
44   13  to the right of    7
45   13  to the right of    0
46   14   to the left of    5
47   14   to the left of    8
48   14   to the left of    7
49   14   to the left of   11
50   16   to the left of    7
51   16   to the left of    8
52   16   to the left of    5
53   16               on    6