With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Matt Kuchar is a Hungarian.
text_B: The Mangfall is a left tributary of the River Inn in Upper Bavaria .. Bavaria. Bavaria. Inn. Inn ( river ). River Inn. River Inn. Upper Bavaria. Upper Bavaria. It is 58 km long .. The Mangfall is the tailstream of the Tegernsee lake and discharges near Rosenheim into the Inn .. Tegernsee. Tegernsee. Rosenheim. Rosenheim. Inn. Inn ( river )
not_related.