This is the ".nlp:anchorOf" template. It should be called in the following format:

{{.nlp:anchorOf
|string values, each on a separate line
|ns:pagenames, each on a separate line
|subobject names, each on a separate line
|zero or more IRIs, each on a separate line

|set property=property name (default=.nlp:anchorOf)
|value count=max || min:max (default=0:*)
|value constraint=
}}

Best Practices:Planned facets