With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Twitter has only one office globally.
text_B: Eudesmia ruficollis is a moth of the Arctiidae family .. Arctiidae. Arctiidae. Eudesmia. Eudesmia. moth. moth. It is found in Brazil and Argentina .. Brazil. Brazil. Argentina. Argentina
not_related.