Complex sentence: Bourget was commissioned in 1925 to provide a sculpture for this memorial and working in granite, he sculpted a helmeted soldier ("poulu") with rifle who leans on a rock looking at a cross and the graves of his comrades.
Split into simpler sentences: Bourget was commissioned in 1925 to provide a sculpture for this memorial. He worked with granite and sculpted a helmeted soldier ("poulu") with rifle who leans on a rock looking at a cross and the graves of his comrades.