With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ella Purnell is in an American creative work.
text_B: The Hon. Donald Mackenzie , styled Lord Mackenzie , -LRB- 22 June 1818 -- 19 May 1875 -RRB- was a Senator of the College of Justice , Edinburgh , Scotland .. styled. Forms of address in the United Kingdom#Scotland. Senator of the College of Justice. Senator of the College of Justice
not_related.