Complex sentence: At age thirteen, Kaufman joined the Merchant Marine, which he left in the early 1940s to briefly study literature at New York's The New School, where he met William S. Burroughs and Allen Ginsberg.
Split into simpler sentences: At age thirteen, Kaufman joined the Merchant Marine, which he left in the early 1940s to briefly study literature at New York's The New School. There, he met William S. Burroughs and Allen Ginsberg.