Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : John Holland, 2nd Duke of Exeter KG (18 March 1395 -- 5 August 1447) was an English nobleman and military commander during the Hundred Years' War. 
Question : Which historic war did John Holland, 2nd Duke of Exeter participate?
[A]: Hundred Years' War


[Q]: Context : The Type 97 motorcycle, or Rikuo, was a copy of a Harley-Davidson motorcycle produced from 1935 in Japan under license from Harley-Davidson by the Sankyo Company (later Rikuo Nainen Company). 
Question : What was the year Type 97 motorcycle entered service?
[A]: 1935


[Q]: Context : Franz Kolb (fl. 1880s) was a German pharmacist and the inventor of the modeling paste Plastilin. 
Question : What was Franz Kolb's career?
[A]:
pharmacist