Singapore, Dec. 5 -- Four commissioned works from Singapore companies are among the headline works for next year's Singapore International Festival of Arts (Sifa).

Nine Years Theatre is collaborating with New York-based Siti Company on an adaptation of Anton Chekhov's Three Sisters.

Nine Years' artistic director Nelson Chia, 47, tells The Straits Times the commission is a milestone for his company "in the sense that we go full circle into working with our mentors, who have become our friends over the years and are now our collaborators".

He adds: "It is also a recognition of our perseverance in actor training."

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