With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Red Hot Chili Peppers are a heavy metal band.
text_B: Dunama tuna is a moth in the family Notodontidae .. Notodontidae. Notodontidae. Dunama. Dunama. moth. moth. It is found in Colombia .. Colombia. Colombia. The length of the forewings is 12 -- 19 mm for males and about 22 mm for females .
not_related.