Get a free private query console and schema-generated docs for your graph in Apollo Studio.
Or, query this graph directly:
curl --request POST \ --header 'content-type: application/json' \ --url 'https://www.salesforce.com/api/plus/content?operationName=relatedlinks&variables=%7B%22contentId%22%3A%22a7R4V0000001G7wUAE%22%7D&bc=OTH' \ --data '{"query":"query { __typename }"}'