# BaseModel required string Ssn # Participant required bool Member required string FirstName required string SurName required string Grade optional string PhoneNumber optional string Email required string GuardianName required string GuardianPhoneNumber required string GuardianEmail required bool IsVisitor required bool HasApprovedGdpr optional string Friends optional string SpecialDiet # Volunteer required string FirstName required string SurName required string PhoneNumber required string Email required bool HasApprovedGdpr required string AreasOfInterest (Json) ## AreaOfInterest required List AreaNames