With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cher was in a 2010 American backstage musical film.
text_B: Cornelis Claesz van Wieringen -LRB- c. 1576 -- 29 December 1633 -RRB- was a Dutch Golden Age painter .. Dutch Golden Age. Dutch Golden Age
not_related.