With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Davis Entertainment's divisions develop and produce film projects.
text_B: The physiographic regions of the world are a means of defining the Earth 's landforms into distinct regions , based upon the classic three-tiered approach by Nevin Fenneman in 1916 , that further defines landforms into  : 1 .. physiographic divisions ; 2 .. physiographic provinces ; and 3 .. physiographic sections .. This foundational model , which Fenneman used to classify the United States , was the basis for similar classifications of other continents later , and is still considered basically valid .
not_related.