With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cindy McCain is the librarian of a United States Senator.
text_B: Ilasco Historic District is a national historic district located at Ilasco , Ralls County , Missouri .. historic district. Historic district ( United States ). Ilasco. Ilasco, Missouri. The district encompasses two contributing buildings and one contributing structure in the unincorporated community of Ilasco .. Ilasco. Ilasco, Missouri. It developed about 1909-1910 , and includes a jail , a one-story commercial building with two storefronts , and a Pratt pony truss bridge .. jail. jail. truss bridge. truss bridge. It was listed on the National Register of Historic Places in 2016 .. National Register of Historic Places. National Register of Historic Places
not_related.