Detailed Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Problem:Billy McKee ( ; 12 November 1921 11 June 2019 ) was an Irish republican and a founding member and leader of the Provisional Irish Republican Army ( PIRA ) .
Solution:
Billy McKee ( ; 12 November 1921 11 June 2019 ) was an Irish republican .