With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Buddy Holly was an American.
text_B: Callahans Hills is an unincorporated community in Pittsylvania County , in the U.S. state of Virginia .. unincorporated community. Unincorporated area. Pittsylvania County. Pittsylvania County, Virginia. U.S. state. U.S. state. Virginia. Virginia
not_related.