4 · Society, Civilization, Culture
47 · crafts and industries
47C · industrial processes, handling of materials
47C3 · dividing (industrial process)
47C33 · sawing (industrial process)
47C33(+2) · sawing (industrial process) (+ labourers ~ crafts, industries, agriculture)
47C33(+21) ·
sawing (industrial process) (+ men (labourers))