With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: C. S. Forester wrote a series.
text_B: Ogemaw County is a county located in the U.S. state of Michigan .. county. Counties of the United States. U.S. state. U.S. state. Michigan. Michigan. As of the 2010 census , the population was 21,699 .. 2010 census. 2010 United States Census. The county seat is West Branch .. county. Counties of the United States. county seat. county seat. West Branch. West Branch, Michigan. The county newspaper of record is the Ogemaw Herald .. county. Counties of the United States. newspaper of record. newspaper of record
not_related.