With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Thirteen is based on nobody's life.
text_B: Dichogama obsolescens is a moth in the Crambidae family .. Crambidae. Crambidae. Dichogama. Dichogama. moth. moth. It was described by Hampson in 1912 .. It is found in Grenada .. Grenada. Grenada
not_related.