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

Q: Context : Master of the View of Ste-Gudule (active 1480 -- 1499), was an Early Netherlandish painter. 
Question : When was Master of the View of Ste-Gudule's death?

A: 1499
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Q: Context : Nancy Talbot died from complications of Alzheimer's disease on August 30, 2009, at her home in Boulder, Colorado, at the age of 89. 
Question : What led to Nancy Talbot's death?

A: Alzheimer's disease
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Q: Context : He shortly worked in a school in Glarisegg (TG,CH) and later founded an experimental school ('La Forge') in Lausanne, Switzerland, but Adolphe Ferrière had to quickly abandon teaching due to his deafness. 
Question : What illness negatively impacted Adolphe Ferrière?

A:
deafness
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