With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lee Harvey Oswald shot Nixon in Dallas.
text_B: Cochylimorpha amabilis is a species of moth of the Tortricidae family .. Tortricidae. Tortricidae. Cochylimorpha. Cochylimorpha. moth. moth. It is found in China -LRB- Xizang -RRB- and Japan .. China. China. Xizang. Xizang. Japan. Japan
not_related.