Death and taxes are not the only certain things in life. Within our human existence is the need to classify the world around us. We are always in a state of classification. In speaking about death, we classify the type of death (ex. death by taxation) and in taxes we classify the type of tax (ex. the death tax). To demonstrate a less morbid example, a document can be classified by the department it was created in, such as “Sales”, and the document type, such as “Proposal”.

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