With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Perth is a ghost town.
text_B: Blueskin was a gray horse ridden by George Washington .. gray. gray ( horse ). George Washington. George Washington. He was one of Washington 's two primary mounts during the American Revolutionary War .. American Revolutionary War. American Revolutionary War. The horse was a half-Arabian , sired by the stallion `` Ranger '' , also known as `` Lindsay 's Arabian '' , said to have been obtained from the Sultan of Morocco .. half-Arabian. part-Arabian. Arabian. Arabian horse. Morocco. Morocco. Blueskin was a gift to Washington from Colonel Benjamin Tasker Dulany -LRB- c. 1752 -- 1816 -RRB- of Maryland .. Dulany married Elizabeth French , a ward of Washington 's , who gave her away at her wedding to Dulany on February 10 , 1773 .. Blueskin , due to his white hair coat , was the horse most often portrayed in artwork depicting Washington on a horse .. Washington 's other primary riding horse was Nelson , a chestnut gelding said to be calmer under fire than Blueskin .. Nelson. Nelson ( horse ). chestnut. chestnut ( coat ). Both horses were retired after the Revolutionary War .. Blueskin lived at Mount Vernon , until he was returned to Mrs. Dulany in November 1785 with the following note  : `` General Washington presents his best respects to Mrs Dulany with the horse blueskin ; which he wishes was better worth her acceptance .. Mount Vernon. Mount Vernon. Marks of antiquity have supplied the place of those beauties with which this horse abounded -- in his better days .. Nothing but the recollection of which , & of his having been the favourite of Mr Dulany in the days of his Court ship , can reconcile her to the meagre appearance he now makes .. Mrs Washington presents her Compliments and thanks to Mrs Dulany for the Roots of Scarcity . ''
not_related.