--- a/src/rps_rules.erl	Sat Mar 08 22:19:02 2014 +0900
+++ b/src/rps_rules.erl	Sat Mar 08 23:36:15 2014 +0900
@@ -12,15 +12,15 @@
     Tokens = lists:map(fun list_to_atom/1, string:tokens(Text, " ")),
     parse(Tokens, #ruleinfo{}).
 
-parse([V1,Label,V2|T], #ruleinfo{hands=Hands, beats=Beats, loses=Loses, why=Why}) ->
+parse([H1,Label,H2|T], #ruleinfo{hands=Hands, beats=Beats, loses=Loses, why=Why}) ->
     Acc = #ruleinfo{
-        hands=add_unique(V1, Hands),
-        beats=dict:append(V1, V2, Beats),
-        loses=dict:append(V2, V1, Loses),
-        why=dict:store({V1, V2}, Label, Why)},
-    parse([V2|T], Acc);
+        hands=add_unique(H1, Hands),
+        beats=dict:append(H1, H2, Beats),
+        loses=dict:append(H2, H1, Loses),
+        why=dict:store({H1, H2}, Label, Why)},
+    parse([H2|T], Acc);
 
-parse([_V2], Acc) ->
+parse([_H2], Acc) ->
     Acc.
 
 % winner for 3 hands is: