With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Charles Woodruff Yost was a United States Ambassador to a supranational organization.
text_B: Marinette Marine Corporation -LRB- MMC -RRB- is a shipbuilding firm in Marinette , Wisconsin .. Wisconsin. Wisconsin. MMC was a subsidiary of Manitowoc Marine Group of Wisconsin .. Manitowoc Marine Group. The Manitowoc Company. Wisconsin. Wisconsin. MMC was sold to Fincantieri Marine Group in 2009 .. Fincantieri. Fincantieri
not_related.