With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Asia contains Russia.
text_B: Tihad Athletique Sport de Casablanca is a Moroccan football club based in Casablanca .. Moroccan. Morocco. football. Association football. Casablanca. Casablanca. Of the 3 clubs in Casablanca they are the most popular in the city behind Wydad Casablanca and Raja Casablanca .. Casablanca. Casablanca. Wydad Casablanca. Wydad Casablanca. Raja Casablanca. Raja Casablanca. Category  : Football clubs in Morocco. Category  : Football clubs in Casablanca. Casablanca. Casablanca. Category  :1947 establishments in Morocco. Category  : Sports clubs in Morocco
not_related.