Rationale: FAIR data or metadata typically do not exist in a silo - they can and should be connected to other digital resources. FAIR principle I3 asks that these connections or references are qualified, that is to say that the nature of a relationship to another resource is clearly indicated. For instance, subsequent versions of metadata or digtial resources can be linked to prior versions using a named relation such as prior version. Data items, such as a named city "e.g. Maastricht" should be linked to cities in a global repository such as Wikidata or GeoNames. Such connections can be specified in a formal document called a LinkSet (https://www.w3.org/TR/void/). To satisfy this metric, provide a URL to the LinkSet document for the resource.