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Schema.org employs a flexible, RDF Schema-derived data model with multiple inheritance types and properties, designed pragmatically for search engine optimization rather than as a universal ontology. It emphasizes extensibility and conformance flexibility, supporting formats like JSON-LD and Microdata. (Schema.org采用基于RDF Schema的灵活数据模型，支持多重继承的类型和属性，旨在优化搜索引擎而非构建通用本体。它强调可扩展性和合规灵活性，支持JSON-LD和Microdata等格式。)