With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Nile drains through Burundi.
text_B: USA Water Polo is the national governing body of water polo for the United States Olympic Committee and as such is the official Member National Association -LRB- MNA -RRB- FINA in the USA .. Water Polo. Water Polo. FINA. FINA. national governing body. Sport governing body. water polo. water polo. United States Olympic Committee. United States Olympic Committee
not_related.