Search Component Group to Search Service Application Relationship
Microsoft.SharePoint.2013.Relationship.SearchServiceApplicationAndSearchComponentGroupMembership (RelationshipType)
Element properties:
Source Code:
<RelationshipType ID="Microsoft.SharePoint.2013.Relationship.SearchServiceApplicationAndSearchComponentGroupMembership" Accessibility="Public" Abstract="false" Base="System!System.Containment">
<Source>Microsoft.SharePoint.2013.SearchApplication</Source>
<Target>Microsoft.SharePoint.2013.Group.SearchComponents</Target>
</RelationshipType>