Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Dec 3;61(Suppl 2):e73–e88. doi: 10.1055/a-1877-9498

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. ( https://creativecommons.org/licenses/by/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 1 — Class conversion example (the ellipse represents a class described using the short Internationalized Resource Identifiers [IRI] and a label; the rectangle represents a relation described using the relation name and the list of attributes).