| http://www.w3.org/ns/prov#value | - ESSENTIAL DUTIES Maintain grounds of industrial, commercial or public property such as buildings, camp and picnic grounds, parks, playgrounds, greenhouses and athletic fields Repair structures and equipment, performing one or more of the following tasks: cut grass, using walking-type or riding trim hedges, and edges around walks, flowerbeds, and wells, using hedge trimmers, clippers and edging too
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