With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Ozarks encompass the Mississippi river valley.
text_B: Gartree could refer to. Gartree -LRB- HM Prison -RRB- , a Category B men 's prison located in Market Harborough , Leicestershire. Gartree Hundred , a wapentake and later a hundred of Leicestershire , England. Gartree Hundred. Gartree Hundred. Gartree High School , a Secondary School in Leicester. Gartree High School. Gartree High School. Gartree -LRB- Lincolnshire -RRB- , a wapentake of Lincolnshire. Gartree , County Antrim , a townland in County Antrim , Northern Ireland
not_related.