With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tanzania is African.
text_B: Ascending artery may refer to  :. Ascending palatine artery , an artery in the head that branches off the facial artery .. Ascending palatine artery. Ascending palatine artery. Ascending pharyngeal artery , an artery in the neck that supplies the pharynx .. Ascending pharyngeal artery. Ascending pharyngeal artery. Ascending cervical artery , a small artery which arises from the inferior thyroid artery. Ascending cervical artery. Ascending cervical artery
not_related.