With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The 2016 Summer Olympics was a mulit-sport event.
text_B: Patrizio Lunato Laosio -LRB- died 22 April 1602 -RRB- was a Roman Catholic prelate who served as Bishop of Nusco -LRB- 1578-1602 -RRB- .. Nusco. Nusco. Bishop of Nusco. Roman Catholic Diocese of Nusco
not_related.