With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Girls' Generation was formed by a South Korean entity.
text_B: Haplochromis pundamilia is a species of cichlid endemic to the Tanzanian portions of Lake Victoria .. cichlid. cichlid. endemic. endemism. Lake Victoria. Lake Victoria. This species can reach a length of 12.4 cm SL .. fish measurement
not_related.