With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sarah Paulson was an actor in the 1980's.
text_B: Drazki -LRB- Дръзки -- Daring -RRB- is a of the Bulgarian Navy .. Bulgarian Navy. Bulgarian Navy. Originally constructed for the Belgian Navy as Wandelaar , the ship was acquired by the Bulgarian Navy in 2004 .. Bulgarian Navy. Bulgarian Navy. Belgian Navy. Belgian Navy. The frigate is currently in active service .
not_related.