Complex sentence: Alex Stenzel (born 1965) is a German visual artist, fashion designer, product designer, inventor,, philosopher and multi-athlete who had a world ranking in tennis, mountain-bike and triathlon.
Split into simpler sentences: Alex Stenzel (born 1965) is a German visual artist, fashion designer, product designer, inventor, and philosopher. Stenzel is also a multi-athlete who had a world ranking in tennis, mountain-bike and triathlon.