Conversation so far:
Who was Graham Chapman?
Graham Chapman was an English comedian, actor, and writer, known for his writing partnership with John Cleese and his role in British surreal comedy group, Monty Python.
What activities did Graham Chapman and John Cleese do when they wrote together?
During writing sessions, Cleese and Chapman would come up with inspiration by using Roget’s Thesaurus. Reading words out at random, like 'plummet', inspired their first Monty Python skit 'Flying Sheep'.
What type of material did John Cleese and Graham Chapman write together?
Graham Chapman and John Cleese met at Cambridge where they started writing sketches together. They wrote various television assignments, and formed Monty Python with 4 other members in 1969.
What is an example of John Cleese and Graham Chapman's work?
Some notable Monty Python sketches written by Chapman and Cleese are Cheese Shop, Dead Parrot, and Argument Clinic.

Question: What is another work that they did together?
Self-contained rewrite: What is another work that Cleese and Chapman did together besides Cheese Shop, Dead Parrot, and Argument Clinic?