This is the ".dct:isFormatOf" template. It should be called in the following format:

{{.dct:isFormatOf
|string list(\n-delim)
|strings within namespace:pagenames
|string subobjects
|string array names

|set property=property name (default=.dct:isFormatOf)
|value count=max || min:max (default=0:*)
|value constraint=

Best Practices:Planned facets