instruction:
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
question:
Billy McKee ( ; 12 November 1921 – 11 June 2019 ) was an Irish republican .
answer:
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 ) .


question:
Among other things Cohn showed that " Bacillus " can change from a vegetative state to an endospore when conditions are hard .
answer:
Among other things Cohn is remembered for being the first to show that " Bacillus " can change from a vegetative state to an endospore state when subjected to an environment deleterious to the vegetative state .


question:
The image may be projected onto a translucent " rear projection " screen .
answer:

Alternatively , the image may be projected onto a translucent " rear projection " screen , often used for continuous automatic display for close viewing .