premise: The Bessbrook bombing took place on the 17 April 1979 when four Royal Ulster Constabulary (RUC) officers were killed when the Provisional IRA exploded an estimated 1,000 pound roadside van bomb at Bessbrook, County Armagh, believed to be the largest bomb used by the IRA up to that point.
hypothesis: The Bessbrook bombing happened in the last year.
reason: It's definitely incorrect because it happened in 1979. It's difficult for the system because it requires comparing dates and when events happened which seems quite difficult for the system for whatever reason.