--- a/src/rps3.erl	Mon Mar 03 20:06:02 2014 +0900
+++ b/src/rps3.erl	Mon Mar 03 20:08:31 2014 +0900
@@ -11,7 +11,7 @@
     Text = "scissors cut paper covers rock crushes scissors",
     {ok, rps_rules:parse(Text)}.
 
-handle_call(get_hands, _From, State=#state{hands=Hands}) ->
+handle_call(get_hands, _From, State=#ruleinfo{hands=Hands}) ->
     {reply, Hands, State};
 
 % winner for 3 hands is:
@@ -23,7 +23,7 @@
 handle_call({winning_hand, Hands}, _From, State) ->
     {reply, rps_rules:winning_hand(Hands, State), State};
 
-handle_call({why, H1, H2}, _From, State=#state{why=Why}) ->
+handle_call({why, H1, H2}, _From, State=#ruleinfo{why=Why}) ->
     {reply, dict:fetch({H1, H2}, Why), State}.
 
 handle_cast(_Msg, State) -> {noreply, State}.

--- a/src/rps_rules.erl	Mon Mar 03 20:06:02 2014 +0900
+++ b/src/rps_rules.erl	Mon Mar 03 20:08:31 2014 +0900
@@ -4,10 +4,10 @@
 
 parse(Text) ->
     Tokens = lists:map(fun list_to_atom/1, string:tokens(Text, " ")),
-    parse(Tokens, #state{}).
+    parse(Tokens, #ruleinfo{}).
 
-parse([V1,Label,V2|T], #state{hands=Hands, beats=Beats, loses=Loses, why=Why}) ->
-    Acc = #state{
+parse([V1,Label,V2|T], #ruleinfo{hands=Hands, beats=Beats, loses=Loses, why=Why}) ->
+    Acc = #ruleinfo{
         hands=[V1|Hands],
         beats=dict:append(V1, V2, Beats),
         loses=dict:append(V2, V1, Loses),
@@ -23,11 +23,11 @@
 % rock, paper, paper    -> paper
 % rock, rock, paper     -> paper
 
-winning_hand(Hands, State=#state{}) ->
+winning_hand(Hands, State=#ruleinfo{}) ->
     HSet = sets:from_list(Hands),
     sets:fold(
         fun(Hand, Acc) ->
-            Loses = dict:fetch(Hand, State#state.loses),
+            Loses = dict:fetch(Hand, State#ruleinfo.loses),
             case sets:is_disjoint(sets:from_list(Loses), HSet) of
                 false -> Acc;
                 true -> Hand

--- a/src/rps_rules.hrl	Mon Mar 03 20:06:02 2014 +0900
+++ b/src/rps_rules.hrl	Mon Mar 03 20:08:31 2014 +0900
@@ -1,1 +1,1 @@
--record(state, {hands=[], beats=dict:new(), loses=dict:new(), why=dict:new()}).
+-record(ruleinfo, {hands=[], beats=dict:new(), loses=dict:new(), why=dict:new()}).