With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Davis Guggenheim is an American television director.
text_B: Eupithecia stypheliae is a moth of the family Geometridae .. Geometridae. Geometridae. Eupithecia. Eupithecia. moth. moth. It is endemic to Hawaii .. Hawaii. Hawaii ( island ). The larvae feed on Styphelia tameiameiae .. Styphelia tameiameiae. Styphelia tameiameiae
not_related.