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 Link Information: Edmond Audran's Olivette at the Avenue Theatre Question: In what city did Henri perform Edmond Audran's Olivetter with Florence St. John's Opera Company?
Answer: City of Westminster