With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Plato is a scientist.
text_B: Promise is an unincorporated community in Dewey County , in the U.S. state of South Dakota .. unincorporated community. unincorporated community. Dewey County. Dewey County, South Dakota. U.S. state. U.S. state. South Dakota. South Dakota
not_related.