Assertion: observation | /r/HasAspect | both a value
Facets:
Source sentences:
text: An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values.
text: An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived).