Assertion: utterance's entity | /r/ObjectUse | used as required feature
Facets:
value: to a subentity
type: PURPOSE
value: for intent
type: PURPOSE
value: for a machine-learning entity
type: TRANSITIVE-OBJECT
Source sentences:
text: Non-machine-learning entities work by text matching and are used as a required feature for a machine-learning entity or intent.
text: List entities and regular expression (text-matching) entities can be used as required features to a subentity and that acts as a filter to the extraction.