With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Prestige stars Scarlett Johansson.
text_B: Letovnik is a village in Momchilgrad Municipality , Kardzhali Province , southern Bulgaria .. Province. Provinces of Bulgaria. Kardzhali Province. Kardzhali Province. Municipality. Municipalities of Bulgaria. Momchilgrad. Momchilgrad Municipality. Momchilgrad Municipality. Momchilgrad Municipality. Bulgaria. Bulgaria
not_related.