Complex sentence: She is primarily known to modern audiences as Glinda the Good Witch of the North in the musical film "The Wizard of Oz" and her Academy Award nominated performance as Emily Kilbourne in "Merrily We Live".
Split into simpler sentences: She is primarily known to modern audiences as Glinda the Good Witch of the North in the musical film "The Wizard of Oz". She was nominated for an Academy Award for her performance as Emily Kilbourne in "Merrily We Live".