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我正在尝试遵循此答案中给出的关于 Blazegraph 中 OWL 推理的示例,但查询:

select * where { 
  :John rdf:type ?type 
}

仅返回:

type: owl:NamedIndividual, owl:Thing

但不是预期的推论:

type: :Vegetarian

我在 Blazegraph 中的命名空间配置:

com.bigdata.namespace.kb.spo.com.bigdata.btree.BTree.branchingFactor    1024
com.bigdata.relation.container  test-owl
com.bigdata.journal.AbstractJournal.bufferMode  DiskRW
com.bigdata.journal.AbstractJournal.file    bigdata.jnl
com.bigdata.journal.AbstractJournal.initialExtent   209715200
com.bigdata.rdf.store.AbstractTripleStore.vocabularyClass   com.bigdata.rdf.vocab.DefaultBigdataVocabulary
com.bigdata.rdf.store.AbstractTripleStore.textIndex false
com.bigdata.btree.BTree.branchingFactor 128
com.bigdata.namespace.kb.lex.com.bigdata.btree.BTree.branchingFactor    400
com.bigdata.rdf.store.AbstractTripleStore.axiomsClass   com.bigdata.rdf.axioms.OwlAxioms
com.bigdata.rdf.sail.isolatableIndices  false
com.bigdata.service.AbstractTransactionService.minReleaseAge    1
com.bigdata.rdf.sail.truthMaintenance   true
com.bigdata.journal.AbstractJournal.maximumExtent   209715200
com.bigdata.rdf.store.AbstractTripleStore.justify   true
com.bigdata.rdf.sail.namespace  test-owl
com.bigdata.relation.class  com.bigdata.rdf.store.LocalTripleStore
com.bigdata.rdf.store.AbstractTripleStore.quads false
com.bigdata.relation.namespace  test-owl
com.bigdata.btree.writeRetentionQueue.capacity  4000
com.bigdata.rdf.store.AbstractTripleStore.statementIdentifiers  false

我错过了什么?

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