Complex sentence: In 2012 Chisholm co-starred in the UK arena tour of the musical "Jesus Christ Superstar" playing the role of Mary Magdalene, for which she was nominated Best Supporting Actress in a musical at the "What's On Stage" awards.
Split into simpler sentences: In 2012 Chisholm co-starred in the UK arena tour of the musical "Jesus Christ Superstar", playing the role of Mary Magdalene. For her performance Chisholm was nominated Best Supporting Actress in a musical at the 2012 "What's On Stage" awards.