Building and querying the AWS COVID-19 knowledge graph | Amazon Web ServicesThe following is an example graph of the CKG. Notice the outgoing connections from Paper nodes to Author and Concept nodes, and from Author nodes to Institution nodes. A paper (blue nodes) is written by authors (yellow nodes), who are affiliated with specific institutions (green nodes). A paper can have multiple authors, and authors can belong to multiple institutions. Concept nodes (red nodes) ar
