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: Henri first appeared on stage in 1879 at the age of 15 with Florence St. John's Opera Company, performing in Jacques Offenbach's Madame Favart at the Strand Theatre Link Information: Jacques Offenbach (, , , ; 20 June 1819 5 October 1880) Question: How much older was Jacques Offenbach compared to Henri when Henri performed at the Strand Theatre with Florence St. John's Opera company?
Answer: 45