| http://www.w3.org/ns/prov#value | - These occupations usually involve work such as moving and handling materials (e.g., loading, unloading, digging, hauling, hoisting, carrying, wrapping, mixing, pouring, spreading); washing and cleaning laboratory apparatus, cars, and trucks, etc; cleaning and maintaining living quarters, hospital rooms and ward, office buildings, grounds, and other areas; and doing other general maintenance work b
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