With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John McEnroe is known for his rivalry with a Swedish former world No. 1 tennis player.
text_B: Neraudia sericea is a rare species of flowering plant in the nettle family known by the common name woodland ma'oloa .. Neraudia. Neraudia. nettle family. Urticaceae. It is endemic to Hawaii .. endemic. Endemism. Hawaii. Hawaii. It has been found on the islands of Molokai , Maui , Lanai , and Kahoolawe , but it has only been seen recently on Molokai and Maui .. Molokai. Molokai. Maui. Maui. Lanai. Lanai. Kahoolawe. Kahoolawe. There are fewer than 200 individuals remaining .. This is a federally listed endangered species of the United States .. endangered species. endangered species
not_related.