With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Matt Kuchar was denied American citizenship.
text_B: Holcocera poetae is a moth in the Blastobasidae family which is endemic to Costa Rica .. Blastobasidae. Blastobasidae. Holcocera. Holcocera. moth. moth. Costa Rica. Costa Rica
not_related.