With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Democratic Republic of Congo was a Belgian colony until 1960.
text_B: Cape Thomas Hubbard is a headland located in the northern Canadian territory of Nunavut .. headland. headland. northern Canadian. Northern Canada. Nunavut. Nunavut. Projecting into the Arctic Ocean , it is situated on the northern tip of Axel Heiberg Island , 320 mi from Etah , Greenland .. Arctic Ocean. Arctic Ocean. Axel Heiberg Island. Axel Heiberg Island
not_related.