With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Streptococcus pertains to an order that does not breathe.
text_B: Piorini River -LRB- Rio Piorini -RRB- is a river in Amazonas state in north-western Brazil .. Amazonas. Amazonas ( Brazilian state ). Brazil. Brazil. It ends in Lake Piorini -LRB- Lago Piorini -RRB- , which is connected to the Amazon River -LRB- Solimoes section -RRB- through a series of canals and swampland .. Amazon River. Amazon River. Solimoes. Solimoes. The lake is located north of the Amazon River across from Coari city .. Amazon River. Amazon River. Coari. Coari
not_related.