With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Pacific sleeper shark is a close genetic relative of the Greenland shark.
text_B: Amietia quecketti -LRB- Boulenger , 1895 -RRB- is a Southern African river frog known from South Africa , Lesotho , and southwards from Nyanga , Zimbabwe .. Amietia. Amietia. Boulenger. George Albert Boulenger. South Africa. South Africa. Lesotho. Lesotho. This species is found in the highlands of southern and eastern Lesotho to above 2,000 m asl , in Natal in the permanent mountain streams originating in the Drakensberg Escarpment and with a wide distribution throughout South Africa , except in the dry west of the country .. South Africa. South Africa. Lesotho. Lesotho. As a high-altitude stream breeder the species is vulnerable to infection by the fungus Batrachochytrium .. Batrachochytrium. Batrachochytrium. Amietia , or River Frogs , were named after the Swiss herpetologist Jean-Louis Amiet , and the species honours John Frederick Whitlie Quekett -LRB- sic -RRB- , Curator of the Durban Museum at Boulenger 's time , the misspelling with a ` c ' coming from Boulenger .. Amietia. Amietia. Boulenger. George Albert Boulenger. Jean-Louis Amiet. :fr :Jean-Louis Amiet. The genus currently consists of 17 species -LRB- Channing & Baptista , 2013 ; Frost , 2013 -RRB- .. River Frogs or Amietia spp all have streamlined bodies with pointed noses and live close to water .. Amietia. Amietia. They have well-developed hind legs and when disturbed rapidly leap into the water , where they may remain submerged for long periods .. They generally have calls consisting of croaks and clicks , and call singly or in groups .. Their eggs are laid individually in slow-moving to static water .. They are adaptable species and may be found in savanna , on forest fringes , in grasslands , and in the garden ponds of suburbia .. The taxonomy of this genus has been problematic and some clarity has been achieved by A. Channing and N. Baptista in their 2013 work  :. The dorsal colour of A. quecketti ranges from dull brown to luminous green with dark patches , and with a prominent vertebral stripe .. Its underside is unmarked and quite pale , while its tympanum is more than half the diameter of its eye .
not_related.