These settings specify the possible parents of each element:
[TopicParents] ; element = single parent or single *elementset or Any or No
All elements are listed to the left of the equals sign, other than (for DITA) the topic type itself and the topic body type. If an element has more than one possible parent, those parents are defined as a single set, listed in [ElementSets]; see §41.4.2 Content model [ElementSets] settings.
Each of the items listed to the right of the equals sign is one of the following: