With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Doug Ducey had a dark past.
text_B: The Personal Public Service Number -LRB- PPS No -RRB- -LRB- Uimhir Phearsanta Seirbhise Poibli , or Uimh .. Public Service. Public service bodies of the Republic of Ireland. PSP -RRB- is an identifier issued by the Client Identity Services section of the Department of Social Protection , on behalf of the Minister for Social Protection in Ireland .. Ireland. Republic of Ireland. identifier. identifier. Department of Social Protection. Department of Social Protection. Minister for Social Protection. Minister for Social Protection. The PPSN was known as the Revenue and Social Insurance Number -LRB- RSI No -RRB- until 1998 .. RSI Numbers were first issued in April 1979 as a replacement for the separate PAYE Number and Social Welfare Insurance Number which had been used for income tax and social welfare purposes respectively until then .. income tax. income tax. social welfare. social welfare. The PAYE Number was issued by the Revenue Commissioners and these numbers were transferred to the RSI No system as a basis for the unified system .. Revenue Commissioners. Revenue Commissioners
not_related.