With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Memento has an entirely Mexican-American cast.
text_B: William Ziegler , Sr. -LRB- September 1 , 1843 - May 25 , 1905 -RRB- was an American industrialist who was one of the founders of the Royal Baking Powder Company .. Royal Baking Powder Company. Royal Baking Powder Company. He ended up suing his partners .. His other interests were organizing Arctic expeditions and yachting .
not_related.