With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mark Ruffalo is an singer.
text_B: Acleris keiferi is a species of moth of the Tortricidae family .. Tortricidae. Tortricidae. Acleris. Acleris. moth. moth. It is found in North America , where it has been recorded from California and Idaho .. North America. North America. California. California. Idaho. Idaho. Adults have been recorded on wing from May to October .. The larvae feed on Rosa californica , Rubus ursinus and Fragaria species .. Rosa californica. Rosa californica. Rubus ursinus. Rubus ursinus. Fragaria. Fragaria
not_related.