With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jenni Rivera was a mother.
text_B: Oreoglanis macronemus is a species of sisorid catfish .. Oreoglanis. Oreoglanis. sisorid. Sisoridae. catfish. catfish. It is known only from four preserved specimens collected from the Xiangkhoang Plateau , northern Laos , by an expedition led by Jean Theodore Delacour in the mid-1920s and misidentified as Euchiloglanis sp .. Xiangkhoang Plateau. Xiangkhoang Plateau. Laos. Laos. Jean Theodore Delacour. Jean Theodore Delacour. Euchiloglanis. Euchiloglanis davidi. These specimens are in the Natural History Museum , London .. Natural History Museum. Natural History Museum, London. London. London. This is a very small catfish -LRB- the largest specimen , a male , has a standard length of 6.5 cm -RRB- , generally smaller than most other Oreoglanis species -LRB- although the small sample size makes this distinction largely irrelevant -RRB- .. Oreoglanis. Oreoglanis. catfish. catfish. standard length. fish measurement. The main difference between this species and its congeners is its extremely long nasal barbels , almost half the length of the head .. barbels. barbel ( anatomy )
not_related.