Question: Doctor Ox's Experiment was first performed at a coliseum designed by what architect?
Sentence (from "London Coliseum"): The London Coliseum (also known as the Coliseum Theatre) is a theatre in St. Martin's Lane, central London, built as one of London's largest and most luxurious "family" variety theatres. Opened on 24 December 1904 as the London Coliseum Theatre of Varieties, it was designed by the theatrical architect Frank Matcham for the impresario Oswald Stoll.
Relevant evidence: Yes