With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Greyson Chance was born on August 16th, 1997.
text_B: The Pasimoni River -LRB- Rio Pasimoni -RRB- is a river in the state of Amazonas , Venezuela .. It is a tributary of the Casiquiare canal , in turn a tributary of the Rio Negro .. Rio Negro. Rio Negro ( Amazon ). Casiquiare canal. Casiquiare canal. The Pasimoni forms on the northern slope of the Cerro de la Neblina and flows northward to Casiquiare canal .. Casiquiare canal. Casiquiare canal. Cerro de la Neblina. Cerro de la Neblina. It surrounded by low , poorly drained country .. It drains a heavily forested region where the driest months are December to February , but rain is common in the dry season .. It is a classic blackwater river with low pH , conductivity , solute and nutrients .. blackwater river. blackwater river
not_related.