1 2 s35 
1 7 perp 
1 8 cWW 
2 3 s35 
2 5 cWW 
2 8 s55 
3 4 cWW 
3 5 perp 
4 5 perp 
5 8 s35 
6 7 s33 
7 8 perp 
