With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Santorini is the site of a an active volcano.
text_B: Sacha Gros -LRB- born November 27 , 1974 in Glenwood Springs , Colorado -RRB- is an American former alpine skier who competed in the 1998 Winter Olympics .. American. United States. alpine skier. Alpine skiing. 1998 Winter Olympics. 1998 Winter Olympics
not_related.