| http://www.w3.org/ns/prov#value | - (E) Drilling occupations" mean all job classifications associated with the exploration or extraction of oil, gas, or water resources work, including but not limited to the installation, establishment, reworking, maintenance or repair of wells and pumps by boring, drilling, excavating, casting, cementing and cleaning for the extraction or conveyance of fluids such as water, steam, gases, or petrol
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