Complex sentence: Peter Matthiessen (May 22,1927--April 5,2014) was an American novelist, naturalist, wilderness writer, CIA-agent, a co-founder of the literary magazine "The Paris Review" and a three-time National Book Award winner.
Split into simpler sentences: Peter Matthiessen (May 22,1927--April 5,2014) was an American novelist, naturalist, wilderness writer and CIA-agent. A co-founder of the literary magazine "The Paris Review" and a three-time National Book Award winner.