With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Just Dance was released in April 2009.
text_B: The Karanga River is a river that passes through the Karanga Ward of the Kilimanjaro Region of Tanzania .. Karanga Ward. Karanga ( Moshi Urban Ward ). Kilimanjaro Region. Kilimanjaro Region. Tanzania. Tanzania. Its source is at the foot of Mount Kilimanjaro from which it flows southwards to the Nyumba ya Mungu Reservoir .. Mount Kilimanjaro. Mount Kilimanjaro. Nyumba ya Mungu Reservoir. Nyumba ya Mungu Reservoir
not_related.