Fig. 4From: A protocol for adding knowledge to Wikidata: aligning resources on human coronavirusesApplication of the drafted ShEx schemas in the EntitySchema extension of Wikidata allows for confirmation if a set of on-topic items align with expressed expectations. In panel a, the application renders the Wikidata item invalid due to a missing reference which in turn does not conform to the expressed ShEx whereas in panel b, the item (Q88292589) conforms to the applied schemaBack to article page