With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: South America is home to a river.
text_B: Sarny -LRB- Сaрни , Сaрны , Sarny -RRB- translated as Does , is a small city in the Rivne Oblast -LRB- province -RRB- of western Ukraine .. Oblast. Subdivisions of Ukraine. Ukraine. Ukraine. Rivne Oblast. Rivne Oblast. Does. Deer. city. city. province. Oblast. It is the administrative center of the Sarny Raion -LRB- district -RRB- , and is a major railway node on the Sluch River .. Raion. Raion. Sarny Raion. Sarny Raion. administrative center. Capital city. district. Raion. Sluch River. Sluch River ( Ukraine ). The current estimated population is 28,604 -LRB- 2011 -RRB- .
not_related.