With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Katie Stevens once finished in eighth place on The Voice.
text_B: Calyptra eustrigata is a moth of the family Noctuidae , found in Sri Lanka and Malaysia .. Noctuidae. Noctuidae. Calyptra. Calyptra ( moth ). moth. moth. Sri Lanka. Sri Lanka. It has been reported as exhibiting parasitic blood-sucking behavior .
not_related.