put all methods to load finite sets into a module defined as class FiniteSetsLoader
create a new class KnowledgeBaseLoader. All code to import existing knowledge base will be moved to here
renamed class KnowledgeBaseLoader to HeuristicNounsLearner. All methods to learn heuristic nouns will be put here
all methods to learn heuristic nouns will be put in the new class
moved all code to learn heuristic nouns into HeuristicNounsLearner class