With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kris Wu attended a film academy.
text_B: The Sadolin Sports Hall -LRB- Sadolin Spordihoone -RRB- is a multi-purpose indoor arena complex in Rapla .. Rapla. Rapla. indoor arena. list of indoor arenas. It was opened in 2010 and is the current home arena of the Estonian Basketball League team Rapla KK .. Rapla. Rapla. Basketball. Basketball. Rapla KK. Rapla KK. Estonian Basketball League. Korvpalli Meistriliiga
not_related.