H H 1/2 I I 1/2 J J 1/2 K K 1/2 L L 1/2 M M 1/2 N N 1/2 O O 1/2 P P 1/2 Q Q 1/2 R R 1/2 S S 1/2 T T 1/2 U U 1/2 V V 1/2 W W 1/2 X X 1/2 email for other