With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Wizard of Oz is a production in which music is included in the narrative.
text_B: Catoptria submontivaga is a moth in the Crambidae family .. Crambidae. Crambidae. Catoptria. Catoptria. moth. moth. It was described by Bleszynski in 1965 .. It is found in Japan -LRB- Hokkaido -RRB- .. Japan. Japan
not_related.