With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Andy Kaufman was a performance artist and gained acclaim.
text_B: The Chicago Sports Museum is an 8,000-square-foot museum located along the Magnificent Mile at the Water Tower Place mall in Chicago .. Magnificent Mile. Magnificent Mile. Water Tower Place. Water Tower Place. The museum , which was opened on April 1 , 2014 -- by Harry Caray 's Restaurant Group and CEO Grant DePorter -- features interactive skill challenges , unique sports memorabilia , and a collection of game-used artifacts well-known to fans of Chicago sports .. Grant DePorter. Grant DePorter
not_related.