5;05B5  ?5@545;0BL  MB>  AB@>5=85  70
 
 < v a l u e = q 1 >   < v a l u e = r 1 > 
 
 < v a l u e = q 2 >   < v a l u e = r 2 > 
 
 < v a l u e = q 4 >   < v a l u e = r 4 > 
 
 < v a l u e = q 3 >   < v a l u e = r 3 > ? 