With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Colombia hosted the 2011 FIFA U-20 World Cup.
text_B: La Veuve Couderc is a Belgian novel by Georges Simenon .. Georges Simenon. Georges Simenon. It was first published in 1942 .. Category  :1942 novels. Category  : Belgian novels. Category  : French-language novels. Category  : Novels by Georges Simenon. Georges Simenon. Georges Simenon
not_related.