poly1 6
1.5 5
5 2.5
7 2.5
8.5 5
7 7.5
5 7.5
poly2 6
5 8.5
2.5 5
2.5 3
5 1.5
7.5 3
7.5 5
line1 1
2 5 8 5
line2 1
5 2 5 8