English: Data Model of COVID-19 information on Wikidata (As of 2 August 2020). The three main COVID-related items (the ‘C3 items’) are represented in red, selected classes of item related to these are shown in blue, with the relations between them represented as arrows. The number of statements relating to each item from the relevant class is indicated next to the item (In the case of scholarly articles, relations to each of the three COVID-related items is indicated by colour). Relation types regularly used to define items within Wikidata classes are omitted (e.g. chromosome [P1057] for human genes).