With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 1960 was the start date of The Beatles.
text_B: Eudalaca cretata is a species of moth of the family Hepialidae .. Hepialidae. Hepialidae. Eudalaca. Eudalaca. moth. moth. It is known from South Africa .. South Africa. South Africa
not_related.