With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Pluto is primarily made of ice, rock, and air.
text_B: Edna Hicks -LRB- October 14 , 1891 or 1895 -- August 16 , 1925 -RRB- was an American blues singer and musician .. blues. blues. Her recorded songs include `` Hard Luck Blues '' and `` Poor Me Blues '' .. Blues. Blues. She also recorded `` Down Hearted Blues '' , and `` Gulf Coast Blues '' on the Brunswick label in 1923 .. Blues. Blues
not_related.