In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

[EX Q]: Paul Adrien Maurice Dirac {'1': ", '2': ", '3': ", '4': "} ( ; 8 August 1902 – 20 October 1984) was an English theoretical physicist who made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics. He was the Lucasian Professor of Mathematics at the University of Cambridge, a member of the Center for Theoretical Studies, University of Miami, and spent the last decade of his life at Florida State University. Question: When was the English theoretical physicist died who's theory is Dirac hole? Answer: 20 October 1984
[EX A]: Paul Adrien Maurice Dirac {1: , 2: , 3: , 4: }  ; 8 August 1902 – 20 October 1984 was an English theoretical physicist who made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics.

[EX Q]: Calodendrum is a genus of medium-sized evergreen trees comprising two species from Africa. "Calodendrum capense" (Cape Chestnut) is a well known tree that is widely cultivated, while "Calodendrum eickii" is a rare forest tree from Tanzania. The botanical name comes from Greek, "kalos" means beautiful and "dendrum" means tree. Both species are harvested for their timber in Africa. Question: Are both Calodendrum and Echeveria genus of trees? Answer: no
[EX A]: Calodendrum is a genus of mediumsized evergreen trees comprising two species from Africa. 

[EX Q]: Bing Crosby's Merrie Olde Christmas is a posthumous 1977 Christmas television special starring Bing Crosby and his family with special guests Twiggy, David Bowie, Ron Moody, Stanley Baxter and Trinity Boys Choir. It was Crosby's final Christmas special, recorded just five weeks before his death on October 14, 1977, and is also known most notably for its musical highlight of the iconic duet by the unusual pairing of Crosby and Bowie on "Peace on Earth/Little Drummer Boy", Question: What duet performed Peace on Earth/Little Drummer Boy Answer: Crosby and Bowie
[EX A]:
 It was Crosbys final Christmas special, recorded just five weeks before his death on October 14, 1977, and is also known most notably for its musical highlight of the iconic duet by the unusual pairing of Crosby and Bowie on Peace on EarthLittle Drummer Boy,