With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Nilotic languages are spoken by only the Pirahã people.
text_B: The Nilotic languages are a group of Eastern Sudanic languages spoken across a wide area between South Sudan and Tanzania by the Nilotic peoples , who traditionally practice cattle-herding .. South Sudan. South Sudan. Sudan. Sudan. Tanzania. Tanzania. Eastern Sudanic. Eastern Sudanic languages. Eastern Sudanic languages. Eastern Sudanic languages. Nilotic peoples. Nilotic peoples. cattle-herding. Pastoralism
related.