A mind map is basically a tool that connects information around a central subject.
思维导图是一种基本工具，它将信息与中心主题连接起来。
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Map it: What is your subject related to?
勾勒：你的主题与什么事件相关？
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Variant serializations of RDF models are legion, and a DITA map that's specialized for subject definition and classification could be regarded as an alternative serialization of a SKOS model.