With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Alan Ladd was born on September 3, 1913.
text_B: Unidad Editorial , S.A. is a Spanish publishing group .. The leader in daily press and in the online information sector through the newspapers ; El Mundo , Expansion and Marca .. El Mundo. El Mundo ( Spain ). Expansion. Expansion ( Spanish newspaper ). Marca. Diario Marca
not_related.