🚧 Update Person and StudyParticipant pagecontent

input/pagecontent/StructureDefinition-ncpi-person-intro.md

@@ -1,6 +1,5 @@
 #### Key Guidelines
-
-The NCPI Participant profile is based on the standard resource type, [Person](https://hl7.org/fhir/R4B/person.html) and is intended to represent the emographics and administrative information about a person independent of a specific health-related context.
+In situations where a person participates in multiple studies that have participant data scoped in an exclusive way within one or more projects, we have a Person entity. It is functionally a “group” of Participants that are all describing one “actual” person. This is especially to support situations where access policies about that participant might be conflicting and cases where the data itself about the participant might conflict but cannot be adjudicated by the repository.
 
 ##### Added Profile Restrictions
 In order to ensure that our resources are interoperable across studies, we have employed a number of restrictions that should make consuming Patient resources more consistent.

input/pagecontent/StructureDefinition-ncpi-study-participant-intro.md

@@ -1,5 +1,5 @@
 #### Key Guidelines
-The NCPI Study Participant profile is based on the standard resource type, [Research Study](https://hl7.org/fhir/R4B/researchstudy.html) and is intended to link Participant resources to a ResearchStudy.
+Study Participation (ResearchSubject) describes the relationship between a specific Participant and a Research Study that collects and is sharing data on that Participant. A single Participant may have this “Study Participation” relationship with multiple Research Studies, and each relationship may have a different sharing restriction. These relationships are primarily illustrative, as the Access Policy details of any given element are documented within that element. 
 
 ##### Added Profile Restrictions