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'.

Context: His boyhood interest in botany and zoology soon resurfaced, helped along by inspiring lectures from William Crawford Williamson. Link Information: William Crawford Williamson (24 November 1816 – 23 June 1895) Question: What year was the lecturer who inspired Seward born?
Answer: 1816

Context: The main reasons for Cleveland's return into politics were his desire to prevent New York Governor David B. Hill (a political rival of Cleveland's Link Information: David Bennett Hill (August 29, 1843 Question: When was the New York Governor and Grover Cleveland's rival born?
Answer: August 29, 1843

Context: Samuel James "Sam" Ervin Jr. (September 27, 1896April 23, 1985) Link Information: Ervin was a legal defender of the Jim Crow laws Question: How old was Ervin when enforcement of the Jim Crow laws ended?

Answer: 69