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: The authorities suspected that Oerter had somehow been involved in Alexander Berkman's attempt to assassinate a wealthy businessman called Henry Clay Frick. Link Information: 

Henry Clay Frick (December 19, 1849 – December 2, 1919) Question: What year was the wealthy businessman that Berkman tried to assassinate born?
Answer: 1849 

Context: participating in the defense of Lunenburg during the Raid on Lunenburg, Nova Scotia (1782). Link Information: Pernette served as an aide-de-camp during the taking of Quebec City in the Battle of the Plains of Abraham. Question: Which of the two battles that Joseph Parnette took part in resulted in the most causalities?
Answer: Battle of the Plains of Abraham

Context: Albert had Rudolph married to Princess Elizabeth Richeza of Poland, a member of the Piast dynasty and widow of the predeceased King Wenceslaus II. Link Information: Elizabeth Richeza of Poland (; ; 1 September 1288 – 19 October 1335), was a Polish princess member of the House of Piast and by her two marriages Queen consort  Question: How many times did the widow of King Wenceslaus II marry?

Answer: two