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Five decades of Yoko Ono and more arts stories

20 March 2014 Last updated at 00:24 GMT

The Guggenheim Museum in Bilbao holds a retrospective of the work of avant-garde artist Yoko Ono, a rare Chinese porcelain cup which could fetch up to $40m (£24m; 29m euros) at auction - and more from the world of arts.

Miranda Hurst reports.

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