With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Connaught Tunnel is an underground passageway.
text_B: Erin Okonek -LRB- born -RRB- is an American female weightlifter , competing in the 69 kg category and representing United States at international competitions .. weightlifter. Olympic weightlifting. She competed at world championships , most recently at the 2005 World Weightlifting Championships .. Weightlifting. Olympic weightlifting. 2005 World Weightlifting Championships. 2005 World Weightlifting Championships
not_related.