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Fig 1.

Research framework.

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Fig 2.

PP-Chatv3 OCR recognition example.

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Table 1.

Data collection volume from different sources.

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Table 2.

Inter-class hierarchical relationships.

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Table 3.

Object properties relationship table.

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Table 4.

Data properties table.

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Fig 3.

Qingyang sachet knowledge ontology model.

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Fig 4.

Example of knowledge extraction.

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Fig 5.

Entity alignment diagram.

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Fig 6.

Ontology relationship mapping diagram.

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Fig 7.

Visualization of the Qingyang sachet knowledge graph.

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Fig 8.

Knowledge retrieval based on ‘createdByCraftsman’.

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Fig 9.

Knowledge discovery based on 五毒蟾蜍.

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