With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tanzania does not share a border with the third largest of the world's oceanic divisions.
text_B: Billwerder is a quarter of Hamburg , Germany , in the borough of Bergedorf .. Hamburg. Hamburg. Bergedorf. Bergedorf. It is located on the northwestern border of the borough adjacent to the borough of Hamburg-Mitte .. Hamburg. Hamburg. Hamburg-Mitte. Hamburg-Mitte. At the same time Billwerder means a greater area south of the river Bille .. Bille. Bille ( Elbe )
not_related.