set O := 1 2 3 4 5 6 7 8;	

set T := 1 2 3 4 5 6 7 8 9 10;	

set A := (1,1)  (1,4)  (1,5)  (1,8)  (1,10) 
(2,2)  (2,5)  (2,6)  (2,9)  
(3,1)  (3,3)  (3,5)  (3,7)  (3,8)  (3,10) 
(4,4)  (4,5)  (4,8) 
(5,1)  (5,4)  (5,6)  (5,8)  (5,10) 
(6,1)  (6,2)  (6,4)  (6,5)  (6,7)  (6,9)  (6,10) 
(7,3)  (7,4)  (7,5)  (7,8)  (7,10) 
(8,1)  (8,3)  (8,6);