I want to know the answer to the following question:
How many times did Frédéric and Liszt collaborate in performances during the years of 1833 to 1841?
All the background I'm provided with is that "Their last appearance together in public was for a charity concert conducted for the Beethoven Memorial in Bonn, held at the Salle Pleyel and the Paris Conservatory on 25 and 26 April 1841.". Is that enough to answer the question?
Answer: no