Complex sentence: Thomas Joseph Givnish (born May 14,1951) is an American botanist, ecologist, and evolutionary biologis, holder of the Henry Allan Gleason Chair in Botany and Environmental Studies at the University of Wisconsin.
Split into simpler sentences: Thomas Joseph Givnish (born May 14,1951) is an American botanist, ecologist, and evolutionary biologist. He holds the Henry Allan Gleason Chair in Botany and Environmental Studies at the University of Wisconsin.