With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dominick Dunne was a writer.
text_B: Nancy Thompson is the name of  :. Nancy Thompson -LRB- Senator -RRB- -LRB- born 1947 -RRB- , Nebraska state senator. Nancy Thompson -LRB- A Nightmare on Elm Street -RRB- , fictional character of the Nightmare on Elm Street film series
not_related.