Complex sentence: His debut as a writer came early, in 1957, with "Simphoni" (Symphony), a collection of poems, which Teeuw described as "cynical, untamed poetry, shocking sometimes".
Split into simpler sentences: His debut as a writer came early with the publication of "Simphoni" (Symphony), a collection of poems, in 1957. The collection has been described as "cynical, untamed poetry, shocking sometimes".