Please answer a question about the following article about Beyoncé:

Beyoncé has stated that she is personally inspired by US First Lady Michelle Obama, saying "She proves you can do it all" and she has described Oprah Winfrey as "the definition of inspiration and a strong woman". She has also discussed how Jay Z is a continuing inspiration to her, both with what she describes as his lyrical genius and in the obstacles he has overcome in his life. Beyoncé has expressed admiration for the artist Jean-Michel Basquiat, posting in a letter "what I find in the work of Jean-Michel Basquiat, I search for in every day in music... he is lyrical and raw". In February 2013, Beyoncé said that Madonna inspired her to take control of her own career. She commented: "I think about Madonna and how she took all of the great things she achieved and started the label and developed other artists. But there are not enough of those women.".

Hoe does she describe Oprah Winfrey?
a strong woman