With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Wizard of Oz is a film about World War I.
text_B: USS Sanderling -LRB- AMS-35  /  AMCU-49  /  MHC-49  /  YMS-446  /  PCS-1393 -RRB- was the lead ship of her subclass of s built for the United States Navy during World War II .. her subclass. YMS-446 class minesweeper. United States Navy. United States Navy. World War II. World War II
not_related.