With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Celine Dion did not sign with Sony.
text_B: Okaya is one of the oldest still functioning Japanese trade concerns founded at Nagoya city in 1669 .. Nagoya. Nagoya. trade. trade. concerns. Concern ( business ). It is a family business more than 200 years and became the Henokiens association member .. family business. family business. Henokiens. Henokiens. It is the 48th on the list of World 's Oldest Family Companies .
not_related.