With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Marie Curie studied while Warsaw was under the Russian Empire's control.
text_B: Artur Voskanyan -LRB- Արթուր Ոսկանյան , born August 13 , 1976 in Yerevan -RRB- is an Armenian retired football player who formerly played midfielder for the Armenian national team and last for Armenian Premier League club Banants Yerevan .. Yerevan. Yerevan. Banants Yerevan. FC Banants. football. Association football. midfielder. midfielder. Armenian national team. Armenia national football team. Armenian Premier League. Armenian Premier League. He is the current head coach of FC Banants .. FC Banants. FC Banants
not_related.