With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John Glenn was one of the Mercury Seven who worked for NASA.
text_B: The William H. Brantley Jr. .. Bridge is a bridge over the Ohoopee River along the Johnson -- Emanuel county line east of Adrian .. Ohoopee River. Ohoopee River. Johnson. Johnson County, Georgia. Emanuel. Emanuel County, Georgia. Adrian. Adrian, Georgia. bridge. bridge. It carries US 80 / SR 26 .
not_related.