With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: My Sweet Lord is by George Harrison.
text_B: Pristimantis zimmermanae is a species of frog in the family Craugastoridae .. frog. frog. Craugastoridae. Craugastoridae. It is found in the Amazonian Basin with records from Colombia -LRB- Amazonas Department -RRB- , Bolivia , and Brazil .. Colombia. Colombia. Amazonas Department. Amazonas Department. Bolivia. Bolivia. Brazil. Brazil. Its natural habitats are tropical moist lowland forests , also occurring in secondary and degraded habitats .. It is a common species .
not_related.