Instruct: Who won womens doubles the year magnús ingi helgason tinna helgadóttir won mixed doubles and ragna ingólfsdóttir won womens singles in 2010
Output: SELECT Womens doubles FROM table WHERE Mixed doubles = Magnús Ingi Helgason Tinna Helgadóttir AND Womens singles = Ragna Ingólfsdóttir AND Year = 2010