With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mike Tyson retired from professional boxing in 2006.
text_B: Pseudohemihyalea syracosia is a moth of the family Erebidae .. moth. moth. Erebidae. Erebidae. It was formerly believed to be a synonym of Pseudohemihyalea ambigua .. Pseudohemihyalea ambigua. Pseudohemihyalea ambigua. It is found from Michoacan , Mexico to Honduras .. Michoacan. Michoacan. Honduras. Honduras. The length of the forewings is about 20 mm .. Adults are on wing from May to September .. The larvae probably feed on Pinus species .. Pinus. Pinus
not_related.