With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Borussia Dortmund is a football club.
text_B: Sipey Peak -LRB- връх Сипеи , ` Vrah Sipey ' \ ` vr & h ` si-pey \ -RRB- is the peak rising to 2200 m in Veregava Ridge , central Sentinel Range in Ellsworth Mountains , Antarctica .. Veregava Ridge. Veregava Ridge. Sentinel Range. Sentinel Range. Ellsworth Mountains. Ellsworth Mountains. Antarctica. Antarctica. It surmounts Orizari Glacier to the south-southwest , Dater Glacier to the west and north , and Berisad Glacier to the east .. Orizari Glacier. Orizari Glacier. Dater Glacier. Dater Glacier. Berisad Glacier. Berisad Glacier. The peak is named after the settlement of Sipey in Southern Bulgaria .
not_related.