RelationshipToProject: The relationship that this entry holds with respect to an existing project.
PartOfProject: Belongs to some recognized project, and the entry was developed by the project's developer.
PartOfCommunity: Belongs to or built on a larger project, but not developed by the project's developer.
PartOfCollection: The entry's developer has created other, similar visualizations, but they aren't considered part of a unified "project".
StandAlone: The entry is not connected to other visualizations in any meaningful way.