Are the door and the floor made of the same material?
No, the door is made of glass and the floor is made of wood.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    1
2     1   to the left of    0
3     1   to the left of    6
4     2   to the left of    7
5     3  to the right of    9
6     3               in    4
7     3   to the left of    7
8     5   to the left of   11
9     5   to the left of    8
10    6  to the right of    1
11    6   to the left of    7
12    7  to the right of    9
13    7  to the right of   12
14    7  to the right of    2
15    7  to the right of    0
16    7  to the right of    6
17    7  to the right of    3
18    8  to the right of    5
19    8   to the left of    9
20    9   to the left of   12
21    9  to the right of   10
22    9   to the left of    7
23    9  to the right of    8
24    9   to the left of    3
25    9  to the right of   11
26   10   to the left of    9
27   11   to the left of    9
28   11  to the right of    5
29   12  to the right of    9
30   12   to the left of    7