base-ontology, v.1.0 The base SHOE ontology YES or NO A boolean YES or NO value A string An HTML 2.0 String Literal constant is called A descriptive name for the instance. This should be a (preferably singular or mass) noun or correctly cased proper noun. A number A floating-point numerical constant is described as This is a human-readable description of a particular instance. SHOE Entity The preferred ancestor category of all SHOE categories defined outside this ontology. A date/time stamp An RFC 1123 Timestamp, as shown in section 3.3.1 of the HTTP/1.0 spec Entity The preferred ancestor category of all SHOE categories. Do not subcategorize from this category--use SHOEEntity instead.