Complex sentence: Initially working in stone in styles reminiscent of European modernists like Jean Arp and Constantin Brâncuși; by the early 1950s, he began working in metal in constructivist tradition.
Split into simpler sentences: Initially working in stone in styles reminiscent of European modernists like Jean Arp and Constantin Brâncuși. By the early 1950s, he began working in metal in constructivist tradition.