I want to know the answer to the following question:
What are "independent" theatre productions at Eton?
All the background I'm provided with is that "Numerous plays are put on every year at Eton College; there is one main theatre, called the Farrer (seating 400) and 2 Studio theatres, called the Caccia Studio and Empty Space (seating 90 and 80 respectively).". Is that enough to answer the question?