Is the curtain in the top?
No, the curtain is in the bottom of the image.
   src        edge_attr  dst
0    0            below    5
1    0  to the right of    2
2    0   to the left of    5
3    2   to the left of    6
4    2   to the left of    0
5    5            above    0
6    5  to the right of    6
7    5  to the right of    0
8    6   to the left of    5
9    6  to the right of    2