| http://www.w3.org/ns/prov#value | - Contractor includes every person engaged in the business of furnishing labor or both labor and materials in connection with all or any part of the construction, alteration, repairing, dismantling, demolition of buildings, roads, bridges, viaducts, sewers, water and gas mains and every other type of structure as an improvement, alteration or development of real property; a person is a contractor
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