With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arnold Schwarzenegger's breakthrough film was released.
text_B: There have been ten baronetcies created for persons with the surname Mackenzie , seven in the Baronetage of Nova Scotia and three in the Baronetage of the United Kingdom .. Baronetage of Nova Scotia. Baronetage of Nova Scotia. Baronetage of the United Kingdom. Baronetage of the United Kingdom. Four of the creations are extant as of 2010 .
not_related.