With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Volleyball is a sport.
text_B: Medicine Arrows -LRB- real name Rock Forehead or Stone Forehead -RRB- -LRB- 17951876 -RRB- was a Cheyenne chief and Keeper of the Medicine Arrows from 1850 until his death .. Cheyenne. Cheyenne. chief. Council of Forty-four. Rock Forehead became known to whites as Medicine Arrows after his appointment to this office .. Among the Cheyenne he was also known by the nickname `` Walks with His Toes Turned Out . ''. Cheyenne. Cheyenne. Rock Forehead was a cousin of Black Kettle .. Black Kettle. Black Kettle. His nephew Little Man who later succeeded as Arrow Keeper after Black Hairy dog .. Several of his children took part in violent confrontations with whites .. His youngest son , Fox Tail , was accused of killing a Mexican herder at Fort Zarah in 1866 during a drunken brawl .. Fort Zarah. Fort Zarah. His oldest son , Tall Wolf , was one of the principal men who took part in violent raids on white settlements along the Saline and Solomon rivers in Kansas in August 1867 and August 1868 , one of the precipitating events leading ultimately to the Battle of the Saline River and the Battle of Washita River in 1867 and 1868 respectively .. Saline. Saline River ( Kansas ). Solomon. Solomon River. Kansas. Kansas. Battle of the Saline River. Battle of the Saline River. Battle of Washita River. Battle of Washita River. Washita River. Washita River. Rock Forehead 's camp was one of several camps along the Washita River downstream of Black Kettle 's village at the time the battle of the Washita which took place on November 27 , 1868 .. Black Kettle. Black Kettle. Washita River. Washita River. Rock Forehead 's daughter was married to a man in Tall Bull 's Dog Soldier band .. Tall Bull. Tall Bull. Dog Soldier. Dog Soldiers. She and her four children survived the Battle of Summit Springs on July 11 , 1869 , in which Tall Bull 's village was destroyed by the 5th Cavalry Regiment ; they were taken prisoner but were later released .. Tall Bull. Tall Bull. Battle of Summit Springs. Battle of Summit Springs. 5th Cavalry Regiment. 5th Cavalry Regiment. Fearing military reprisals following the Red River War , Rock Forehead fled his reservation in January 1875 to join the Northern Cheyenne in Montana .. Cheyenne. Cheyenne. Red River War. Red River War. Montana. Montana. He died there peacefully in 1876 .. His son Black Hairy Dog succeeded him as Keeper of the Medicine Arrows .. Descendant of Rock Forehead reside in the Western Oklahoma area .
not_related.