HELP! se Prolog

[alxkio]

Kserei kaneis pws mporw stin Prolog na zhtisw apo to xrhsth na typwsei mia protash kai na thn apothikeusw se morfh:

protasi([leksh],[leksh],[leksh],[leksh])?

[GIORGARAS]

file otan ekana prolog perisi eixa kanei kati paromoio me auto pou zitas alla tora den thimamai tipota. Pano ap'ola prepei na exeis katalabei tin enoia tou kanona :- kai pos mporeis na kaneis loop stin prolog. Tha ksekiniseis enan kanona as poume start(X). Mesa se auton tha baleis: gia tin gr_prolog oxi tin parathiriki alla autin pou trexei sketo kodika i entoli gia na zitaei apo ton xristi na grafei mia protasi einai i eksis: read_str("mpla mpla mpla","") opou anoigei parathiro kai leei ston xristi ta mpa mlpa mpla kai apo kato perimenei na grapsei keimeno. O,ti sou leo an den einai akribos einai sto peripou giati opos sou eipa exo poli kairo na tin piaso tin prolog. Meta tha prepei na tou peis na pairnei tin protasi kai an thimamai kala me to fronttoken tin xorizei. fronttoken(X,Y,Z) an thimamai kala to X+Y=Z panta gia keimeno milao. Meta thelei skepsi pos to theleis. na baleis kai entoli eksodou apo ton kanona otan diladi den exei meinei allo keimeno na spasei na stamataei o kanonas.File auti tin stigmi den mporo na se boithiso pio poli apo pleuras entolon giati den thimamai omos tha ksana asxolitho me prolog se merikous mines logo neas ergasias pou ta analabo mallon. Pantos ena poli kalo meros gia apories einai to http://www.visual-prolog.com/ kai enoite to forum pou iparxei gia tin visual prolog http://discuss.visual-prolog.com/ubbcgi/Ultimate.cgi?action=intro kai mporeis na rotas o,ti thes.