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samuell/ruleoffive.pl

Created October 29, 2009 18:03
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ruleoffive.pl
% *** Some facts about substances ***
hasHBondDonorsCount( substanceX, 3 ).
hasHBondDonorsCount( substanceY, 5 ).
hasHBondDonorsCount( substanceZ, 7 ).
hasHBondAcceptorsCount( substanceX, 7 ).
hasHBondAcceptorsCount( substanceY, 10 ).
hasHBondAcceptorsCount( substanceZ, 13 ).
hasMolecularWeight( substanceX, 320 ).
hasMolecularWeight( substanceY, 500 ).
hasMolecularWeight( substanceZ, 500 ).
% *** "Rule of Five" (simplified) àla Prolog ***
isDrugLike( Substance ) :-
hasHBondDonorsCount( Substance, HBDonors ),
HBDonors =< 5,
hasHBondAcceptorsCount( Substance, HBAcceptors ),
HBAcceptors =< 10,
hasMolecularWeight( Substance, MW ),
MW < 500.
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