Generate a correct and concise answer for the question based on the words in the context.
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Question: Context : Karl-Wilhelm von Schlieben (30 October 1894 -- 18 June 1964) was a German officer in World War I and World War II.
Question : Which war did Karl-Wilhelm von Schlieben participate in?

Answer: World War I

Question: Context : Harriet Wheeler (born 26 June 1963) is an English singer and songwriter, best known as the lead singer of the 1980s/1990s alternative rock band, The Sundays.
Question : What was Harriet Wheeler's career?

Answer: singer

Question: Context : Ruzica Sokic was diagnosed with Alzheimer's disease and died from the illness on 19 December 2013, aged 79, in her hometown of Belgrade, Serbia.
Question : Which medical condition does Ruzica Sokic suffer from?

Answer:
Alzheimer's disease