With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Alpha Centauri is a star.
text_B: The Spearhead 2457 m is a peak in the Garibaldi Ranges of British Columbia , Canada , and is one of the main summits of the Blackcomb Mountain portion of the Whistler Blackcomb ski resort , located at the apex of the Blackcomb and Spearhead Glaciers , which is named for it .. peak. Summit ( topography ). Garibaldi Ranges. Garibaldi Ranges. British Columbia. British Columbia. Canada. Canada. Blackcomb Mountain. Blackcomb Mountain. Whistler Blackcomb. Whistler Blackcomb. Blackcomb. Blackcomb Glacier. It also is the namesake of the Spearhead Range , which is the short range flanking the north side of Fitzsimmons Creek and ending on its northwest end at Blackcomb Mountain .. Blackcomb Mountain. Blackcomb Mountain. Blackcomb. Blackcomb Glacier. Spearhead Range. Spearhead Range. Fitzsimmons Creek. Fitzsimmons Creek
not_related.