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. 2013 Apr 15;4(Suppl 1):S5. doi: 10.1186/2041-1480-4-S1-S5

Table 2.

Retrieving articles based on annotations

SPARQL query Query expressed in natural language
Inline graphic → Retrieving PubMed identifier for those articles that have been semantically annotated with the biological entity CHEBI:60004. The semantic annotation comes from the occurrence of the term “mixture” in any paragraph of the retrieved articles.

As content has been semantically enriched, it is possible to retrieve articles based on either the annotated terms, e.g., “mixture,” or their corresponding biological entities, e.g., CHEBI:60004.