Task: Explanation
Input (English): Petrushka (French: "Pétrouchka" ; Russian: "Петрушка" ) is a ballet burlesque in four scenes. It was composed in 1910–11 and revised in 1947. Igor Stravinsky composed the music, and, with Alexandre Benois, fashioned the libretto. Michel Fokine choreographed the ballet; Benois designed the sets and costumes. "Petrushka" was first performed by Sergei Diaghilev's Ballets Russes at the Théâtre du Châtelet in Paris on 13 June 1911. Vaslav Nijinsky portrayed Petrushka with Tamara Karsavina as the Ballerina. Alexander Orlov portrayed the Moor, and Enrico Cecchetti the Charlatan. Question: Where was the ballet company based that first performed Petrushka? Answer: Paris
Output (English):  Petrushka was first performed by Sergei Diaghilevs Ballets Russes at the Théâtre du Châtelet in Paris on 13 June 1911.