With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cosmopolitan as of 2011 contains content which includes articles on political dialogue.
text_B: Hunter Marine is a U.S.-based yacht builder , now known as Marlow-Hunter , LLC , owned by David E. Marlow .. The company also produces the Mainship powerboat brand .. powerboat. powerboat. Marlow also owns and manufactures the Marlow Yachts brand consisting of long range power cruisers in the 37 to 110 foot range , built in China .
not_related.