Complex sentence: Large-scale and important pieces are created for use by members of the Bwadi Bwa secret society-these include masks known as kifwebe (with highly distinctive faces covered in curvilinear decorations).
Split into simpler sentences: Large-scale and important pieces are created for use by members of the Bwadi Bwa secret society. These include masks known as "kifwebe" (with highly distinctive faces covered in curvilinear decorations).