The SItem structure.
Items are nodes in a relation which is again linked to an utterance. Items contain a key-value (string/object) set of features. An Item can have a list of daughter items as well. Items can be shared between relations.
Inherit from SObject.
Relation that this item is a node in.
Shared content of this item.
The parent of this item.
The daughters of this item.
Next item in this item’s relation.
Previous item in this item’s relation.
