With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Red Velvet (band) is a South Korean girl group.
text_B: Dudusa nobilis is a moth of the family Notodontidae .. Notodontidae. Notodontidae. Dudusa. Dudusa. moth. moth. It is found in northern and south-eastern China and Taiwan .. China. China. Taiwan. Taiwan. The larvae feed on the leaves of Litchi chinensis and Nephelium lappaceum .. Litchi chinensis. Litchi chinensis. Nephelium lappaceum. Nephelium lappaceum
not_related.