With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gregor Clegane is an older brother.
text_B: Ser Gregor Clegane , nicknamed The Mountain , is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin , and its television adaptation Game of Thrones .. A Song of Ice and Fire. A Song of Ice and Fire. Game of Thrones. Game of Thrones. George R. R. Martin. George R. R. Martin. fictional character. fictional character. fantasy. fantasy. He is a retainer to House Lannister .. House Lannister. House Lannister. An enormous man , he is well known for his size , prowess in battle and cruelty .. Introduced in 1996 's A Game of Thrones , Gregor is the older brother of Sandor Clegane , from the fictional kingdom of Westeros .. Game of Thrones. Game of Thrones. A Game of Thrones. A Game of Thrones. Sandor Clegane. Sandor Clegane. Westeros. Westeros. He subsequently appeared in Martin 's A Clash of Kings -LRB- 1998 -RRB- , A Storm of Swords -LRB- 2000 -RRB- and in A Dance with Dragons -LRB- 2011 -RRB- as Ser Robert Strong .. A Clash of Kings. A Clash of Kings. A Storm of Swords. A Storm of Swords. A Dance with Dragons. A Dance with Dragons. Ser Gregor Clegane is a huge knight and the elder brother of Sandor Clegane .. Sandor Clegane. Sandor Clegane. knight. knight. Called `` The Mountain That Rides '' , he is known for his incredibly cruel nature and uncontrollable temper .. His size and strength make him a fearsome warrior , and he has earned a reputation for cruelty and brutality .. He is able to wield a two-handed sword one handed .. When they were children , Gregor shoved Sandor 's face into a brazier , gruesomely scarring him .. Gregor Clegane is portrayed by Conan Stevens in season one , by Ian Whyte in season two , and by Hafþor Julius Bjornsson in seasons four , five , and six in the HBO television adaptation .. Hafþor Julius Bjornsson. Hafþor Julius Bjornsson. Ian Whyte. Ian Whyte ( actor ). Conan Stevens. Conan Stevens. season one. Game of Thrones ( season 1 ). season two. Game of Thrones ( season 2 ). four. Game of Thrones ( season 4 ). five. Game of Thrones ( season 5 ). six. Game of Thrones ( season 6 ). HBO. HBO
related.