内容模型中的节点可以携带由com . ibm . portal . MetaData接口表示的元数据。

A node in the content model can carry meta data, represented with the com.ibm.portal.MetaData interface.

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在这些模型表示法和支持的转换之下是一系列的元模型。

Underlying these model representations, and supporting the transformations, is a set of metamodels.

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SPARQL被设计用来查询以rdf数据模型表示的数据，这种数据模型用一个三元组来表示数据，每个三元组都具有一个主语、一个谓语和一个宾语。

SPARQL is designed to query data represented with the RDF data model, which represents data as a collection of triples, each of which has a subject, a predicate, and an object.

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