In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[Q]: Context: His son William Frederick Havemeyer, retired from the sugar refining business in 1842 Link Information: William Frederick Havemeyer (February 12, 1804 – November 30, 1874)  Question: How old was William Havemeyer's son when he retired from the sugar refining business?
[A]: Answer: 38


[Q]: Context: Shmuel's mother, Chaya Devora (née Melamed) (1882–1942), was born in Riga Link Information: Riga (; ; ) is the capital of Latvia and is home to 632,614 inhabitants Question: What is the current population of the city Shmuel's mother was born in?
[A]: Answer: 632,614 


[Q]: Context: In 1973, Esaki received the Nobel Prize in Physics Link Information: none Question: How many Nobel Prizes in Physics were awarded before it was given to Leo Esaki?
[A]:
Answer: none