Complex sentence: Origin published Olson's "In Cold Hell, In Thicket", as its eighth issue, in 1953 as well as Louis Zukofsky's key work, "A 1-12".
Split into simpler sentences: Origin published Olson's "In Cold Hell, In Thicket", as its eighth issue, in 1953. It also published Louis Zukofsky's key work, "A 1-12".