With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: William McKinley was a lawyer.
text_B: The Raisner Graffiti is an American ultralight trike that was designed by Bill Raisner and produced by Raisner Aircraft Depot , a division of Leading Edge Air Foils of Peyton , Colorado and introduced about 1997 .. American. United States. ultralight trike. ultralight trike. Raisner Aircraft Depot. Raisner Aircraft Depot. Leading Edge Air Foils. Leading Edge Air Foils. When it was available the aircraft was supplied as a kit for amateur construction .. By 2014 the aircraft was no longer offered for sale by Leading Edge Air Foils .. Leading Edge Air Foils. Leading Edge Air Foils
not_related.