With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Conan O'Brien's late-night programs are said to be prudish and boring.
text_B: The Volta Internacional Cova da Beira -LRB- officially  : Grande Premio Internacional Beiras e Serra da Estrela -RRB- is a professional cycling race held annually in Portugal .. Portugal. Portugal. It is part of the UCI Europe Tour in category 2.1 .. UCI Europe Tour. UCI Europe Tour
not_related.