Basic codes in prolog

Alexander is an banker. Arthur is his son who is jobless and irresponsible party boy. Alexander also has an step daughter named Mary. They had an maid named Lucy. Alexander caught his son with coronet. Dead body of maid was found in the living room who was hit with a blunt weapon. They found cricket bat from Mary’s room. Mary was a cricket player. Lucy had an boyfriend named Francis who was a grocer and had an wooden leg. Mary was also in an relationship with George who had gambling habit. Arthur needed money for parting. A sharp knife was found in his room.