Conversation so far:
What id O'Keeffe known for?
O'Keeffe was a legend beginning in the 1920s, known as much for her independent spirit and female role model, as for her dramatic and innovative works of art.
What were some of her notable works?
CANNOTANSWER.

Question: What is she known for?
Self-contained rewrite: What is Georgia O'Keeffe known for?