With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Caspian Sea is bounded by Azerbaijan.
text_B: Sky Gabon is a cargo airline based in Libreville , Gabon .. Libreville. Libreville. Gabon. Gabon. cargo airline. cargo airline. Its main base is Libreville International Airport .. Libreville International Airport. Libreville International Airport. Libreville. Libreville. The airline is on the list of air carriers banned in the European Union .
not_related.