With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Afghanistan is the source of only the Hephthlite Empire.
text_B: Stenoma aplytopis is a moth in the Depressariidae family .. Depressariidae. Depressariidae. Stenoma. Stenoma. moth. moth. It was described by Edward Meyrick in 1930 .. Meyrick. Edward Meyrick. Edward Meyrick. Edward Meyrick. It is found in Para , Brazil .. Para. Para. Brazil. Brazil. The wingspan is about 13 mm .. wingspan. wingspan. The forewings are whitish , irregularly sprinkled grey .. The plical and second discal stigmata are blackish with a marginal series of blackish dots or marks around the posterior third of the costa and termen .. The hindwings are grey whitish .
not_related.