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In a supertype/subtype hierarchy, attributes are assigned at the highest logical level that is possible in the hierarchy.
Minimum Wage
The lowest hourly pay that employers can legally give to workers.
Protected Health Information
Information about health status, provision of health care, or payment for health care that can be linked to an individual.
Employer Identification Number
A unique nine-digit number assigned by the IRS to businesses for purposes of identification and tax reporting.
Internal Revenue Service
The United States government agency responsible for the collection of taxes and enforcement of tax laws.
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