With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lexmark is a Chinese-owned corporation based in America.
text_B: Lexmark International , Inc. is a Chinese-owned corporation based in the United States that manufactures laser printers and imaging products .. corporation. corporation. The company is headquartered in Lexington , Kentucky .. Lexington. Lexington, Kentucky. Kentucky. Kentucky
related.