Complex sentence: Cathy O'Dowd is a South African rock-climber, mountaineer, author and motivational speaker, famous for being the first woman to reach the summit of Mount Everest from both south (25 May 1996) & north sides (29 May 1999).
Split into simpler sentences: Cathy O'Dowd is a South African rock-climber, mountaineer, author and motivational speaker. Famous for being the first woman to reach the summit of Mount Everest from both south (25 May 1996) & north sides (29 May 1999).