Table 3.

Examples of entities (in bold) and attributes (in italics). The entity class was only considered to be asserted if it was not assigned any of the first four attributes.

Attribute name	Example	Entity class
is_negated	“The patient is not currently homeless.”	Homelessness
	“She does not have a place to stay tonight.”	Stable Housing
is_hypothetical	“He would like to have his own apartment.”	Stable Housing
	“Concerns: worried about becoming homeless”	Homelessness
is_historical	“PMH: Homelesssingle person”	Homelessness
	“Previously had his own apartment.”	Stable Housing
is_ignored	“Here to discuss hishousing situation.”	Stable Housing
	“Is the patient homeless? [] Y [] N”	Homelessness
is_asserted	“She is homeless.”	Homelessness
	“She lives in an apartment.”	Stable Housing