With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Boston Celtics share an arena with an amateur ice hockey team.
text_B: Sergei Sergeyevich Chudin -LRB- Сергеи Сергеевич Чудин born November 24 , 1973 in Moscow -RRB- is a former Russian professional footballer .. Moscow. Moscow. He made his debut in the Soviet Top League in 1991 for FC Spartak Moscow .. Moscow. Moscow. FC Spartak Moscow. FC Spartak Moscow. Soviet Top League. Soviet Top League
not_related.