With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Ku Klux Klan committed physical assault and murder against African-Americans and homosexuals.
text_B: Stick puzzles use sets of ` polysticks ' -LRB- essentially one-dimensional objects -RRB- which have to be assembled into two - or three-dimensional configurations .. Polysticks are configurations of joined or unjoined thin -LRB- ideally one-dimensional -RRB- ` sticks ' .. The sticks may be matchsticks , or pieces of straw , wire or similar .. A special -LRB- and very old -RRB- class of stick puzzles are ` matchstick puzzles ' , where all parts used are sticks -LRB- usually matchsticks -RRB- rather than polysticks .. Some -LRB- trick - -RRB- puzzles can only be solved when one assumes that the sticks actually have measurements in more than one dimension .
not_related.