Улучшить экспертную систему - Prolog

Формулировка задачи:

Необходимо улучшить экспертную систему, необходимо добавить счетчик результатов, и начинаться опрос должен именно с самого популярного результата. Т.е. если по результатам опроса чаще всего выпадает Ruby, то каждый новый опрос должен начинаться с него. Нужна помощь. Если эта не очень простая задача, кто может реализовать отпишитесь, мб договоримся.

database
    dpositive(symbol)
    dnegative(symbol)
 
predicates
    go
    do_consulting
    ask(symbol)
    language(symbol)
    it_is(symbol)
    positive(symbol)
    negative(symbol)
    remember(symbol, char)
    clear_facts
 
goal
    go.
 
clauses
 
/* System user interface */
 
    go :-
        makewindow(1, 7, 7, "EXPERT SYSTEM", 0, 0, 25, 80),
        nl,write(" * * * * * * * * * * * * * * * * * * * "),
        nl,write("        PROGRAMMING LANGUAGES        "),nl,
        nl,write("   Answer questions only 'y' or 'n'   "),nl,
        nl,write(" * * * * * * * * * * * * * * * * * * * "),
        nl,nl,do_consulting,
        nl, readchar(_), removewindow.
        
    do_consulting :-
        language(X), !, nl, 
        write("Your language:  ",X),nl,
        clear_facts.
        
    do_consulting :-
        nl, write("No results!"),
        clear_facts.
        
    ask(X) :-
        write(X, " :  "),
        readchar(Reply),
        write(Reply,"\n"),
        remember(X, Reply).
 
/* Mechanism output */
 
    positive(X) :- dpositive(X),!.
    positive(X) :- not(negative(X)),!,ask(X).
    negative(X) :- dnegative(X),!.
    
    remember(_,27) :- exit.
    remember(X,'y') :- asserta(dpositive(X)).
    remember(X,'n') :- asserta(dnegative(X)),fail.
 
    clear_facts :- retract(dpositive(_)), fail.
    clear_facts :- retract(dnegative(_)), fail. 
 
/*  Production rules */
 
    language("JavaScript"):- 
        it_is("Do you want to develop web applications?"),
        positive("Do you want to work for yourself?"),
        positive("You are a creative person?"),
        positive("Are you willing to constantly learn something new?"),!.
        
    language("Ruby"):- 
        it_is("Do you want to develop web applications?"),
        positive("Do you want to work for yourself?"),
        positive("Are you willing to constantly learn something new?"),!.

Решение задачи: «Улучшить экспертную систему»

textual
                            Листинг программы 
                        

                            domains
    conditions = integer *  
    history = integer *
    
database
    rule(integer, symbol,symbol, conditions)
    cond(integer, symbol)
    yes(integer)
    no(integer)
    
predicates
    do_expert_job
    do_consulting
    clear
 
    go(history, symbol)
    check(integer, history, conditions)
    Inpo(history, integer, integer, symbol)
    do_answer(history, integer, symbol, integer, char)
 
goal
  do_expert_job.
 
clauses
 
/* System user interface */
    
    do_expert_job :-
        makewindow(1, 7, 7, "EXPERT SYSTEM", 0, 0, 25, 80),
        nl,write(" * * * * * * * * * * * * * * * * * * * "),
        nl,write("        PROGRAMMING LANGUAGES        "),nl,
        nl,write("   Answer questions only 'y' or 'n'   "),nl,
        nl,write(" * * * * * * * * * * * * * * * * * * * "),
        nl,nl,do_consulting,
        nl, readchar(_), removewindow.
                           
    do_consulting :-go([],"Language"),!.
    do_consulting :-nl, write("No results!"), clear.
    do_consulting.
               
    inpo(HISTORY,RNO,BNO,TEXT) :-
        write(TEXT," : "),
        readchar(RESPONSE),
        do_answer(HISTORY,RNO,TEXT,BNO,RESPONSE).
 
/* Mechanism output */
 
    go(HISTORY, Mygoal) :-
        rule(RNO,Mygoal,NY,COND),
        check(RNO,HISTORY,COND),!,
        go([RNO|HISTORY],NY).
        
    go(_,Mygoal) :-
        not(rule(_,Mygoal,_,_)),!,                     
        nl,write("Your language:  ",Mygoal), clear.
     
    check(RNO,HISTORY,[BNO|REST]) :-yes(BNO),!,check(RNO,HISTORY,REST).
    check(_,_,[BNO|_]) :- no(BNO),!,fail.
    check(RNO,HISTORY,[BNO|REST]) :-
        cond(BNO,TEXT),
        inpo(HISTORY,RNO,BNO,TEXT),
        check(RNO,HISTORY,REST).
    check(_,_,[]).
     
    do_answer(_,_,_,_, 27) :-exit.
    do_answer(_,_,_,BNO,'y') :-assert(yes(BNO)),write(y),nl.
    do_answer(_,_,_,BNO,'n') :-assert(no(BNO)),write(n),nl,fail.
     
    clear :-retract(yes(_)),retract(no(_)),fail,!.
    clear.                           
                            
/* Knowledge base */
 
    rule(1, "Language", "Web applications", [1]).
    rule(2, "Language", "Applications for phone", [2]).
    rule(3, "Language", "Desktop applications", [3]).
    rule(4, "Language", "Drivers", [4]).
    rule(5, "Language", "Expert systems", [5]).
    rule(6, "Web applications", "JavaScript", [6,7,8]).
    rule(7, "Web applications", "Ruby", [7,8]).
 
    cond(1, "Do you want to develop web applications?").
    cond(2, "Do you want to develop applications for phone?").
    cond(3, "Do you want to develop desktop applications?").
    cond(4, "Do you want to develop drivers?").
    cond(5, "Do you want to develop expert systems?").
    cond(6, "Do you want to work for yourself?").
    cond(7, "You are a creative person?").
    cond(8, "Are you willing to constantly learn something new?").
                        