With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: K-pop Star 2 involves a South Korean singer-songwriter.
text_B: Cippico Castle is a castle in Kastel Novi , a town within the administrative area of Kastela in Dalmatia , Croatia .. Croatia. Croatia. castle. castle. Kastel Novi. Kastel Novi. Kastela. Kastela. Dalmatia. Dalmatia
not_related.