With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Björk performed in a musical drama film.
text_B: Agonopterix l-nigrum is a moth in the Depressariidae family .. Depressariidae. Depressariidae. Agonopterix. Agonopterix. moth. moth. It was described by Matsumura in 1931 .. It is found in Japan -LRB- Hokkaido -RRB- and the Russian Far East -LRB- Amur and Primorye regions -RRB- .. Japan. Japan. Russian Far East. Russian Far East. The wingspan is about 9 mm .. wingspan. wingspan. The forewings are fuscous with a white basal patch bounded on the outside by a black line angled towards the costa .. The. costa is white , irrorated with chestnut in the centre of the cell at one-third to half .. There is a black streak curved to the costal streak at the basal end .
not_related.