Existing Wording: This expression identifies the resource(s) that correspond either to an overall questionnaire, a group within the questionnaire or, occasionally, a single question. The results of executing the specified query are used to indicate the resources used to populate the item when performing population and identifies the data to replace when performing an extraction - and also indicates the relevant resource type.

Comment:

Complex behavior - please add an example.

Summary:

Complex behavior - please add an example.