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https://www.w3.org/TR/owl-ref/#Restriction A property restriction is a special kind of class description. It describes an anonymous class, namely a class of all individuals that satisfy the restriction. 基于集合论, 实体为individual, 概念为class, 具有相同属性/特性的实体自然就形成一个集合,不论是否命名。 马车就是马拉的车。 https://en.wikipedia.org/wiki/Taxonomy_(biology) Taxonomy (from Ancient Greek: τάξις taxis, "arrangement", and -νομία -nomia, "method"[1]) is the science of defining groups of biological organisms on the basis of shared characteristics and giving names to those groups. 生物学分类就是典型例子。
"什么蔬菜可以跟牛肉一起吃?" 。语义分类在问答中经常被用来构造问答模版。在众多过往的upper ontology中,有没有简洁实用的解决方案呢?
schema.org又是如何呢,下面是一个简单梳理
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