With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Vincent Cassel directed Mesrine: Killer Instinct.
text_B: Penthophera lutea is an owlet moth species .. Penthophera. Penthophera. owlet moth. Noctuoidea. It was first described by Jean Baptiste Boisduval in 1847 .. Boisduval. Jean Baptiste Boisduval. Jean Baptiste Boisduval. Jean Baptiste Boisduval. It is found in South Africa .. South Africa. South Africa
not_related.