With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Janis Joplin used only jazz bands as backing groups.
text_B: The Alabama Midland Railway was incorporated in Alabama and Georgia in 1887 , and built a line from Bainbridge , Georgia to a point near Montgomery , Alabama .. Alabama. Alabama. Georgia. Georgia ( U.S. state ). The route was completed in 1890 .. It became part of the Plant System in 1894 , and in 1901 it was merged into the Savannah , Florida and Western Railway .. Plant System. Plant System
not_related.