With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nerrukku Ner was produced in India.
text_B: Lutjanus fulvus , commonly known as the blacktail snapper , is a marine fish native to the western Pacific and Indian Oceans , from East Africa to Japan and Australia .. Lutjanus. Lutjanus
not_related.