With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Brad Pitt has had term papers.
text_B: Business rules are abstractions of the policies and practices of a business organization .. In computer software development , the business rules approach is a development methodology where rules are in a form that is used by , but does not have to be embedded in , business process management systems .. The business rules approach formalizes an enterprise 's critical business rules in a language that managers and technologists understand .. Business rules create an unambiguous statement of what a business does with information to decide a proposition .. The formal specification becomes information for process and rules engines to run .
not_related.