With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The World Science Festival is United States headquartered.
text_B: Krini -LRB- Greek  : Κρηνη meaning `` source '' , before 1955  : Βοστιδι - Vostidi -RRB- is a village in the municipal unit of Oichalia in the southeastern part of the Trikala regional unit , Greece .. Trikala. Trikala ( regional unit ). Oichalia. Oichalia, Trikala. Trikala regional unit. Trikala ( regional unit ). Greece. Greece. It is situated on the edge of the Thessalian Plain , 6 km northwest of Farkadona .. Farkadona. Farkadona. Thessalian Plain. Thessalian Plain. Krini had a population of 733 in 2011 .
not_related.