How to Insert or Update a Table With Foreign Key in Entity Framework

For example you have 2 lookup entities:
Country and Province

And Your Person Entity has country and province field. In short both CountryId and ProvinceId are foreign keys to Person table.

How to setup the Insert Statement (Update is almost the same, just query the Person Entity first). Assuming we have variables countryId and provinceId.

var person = new Person {
  FirstName = "rhed",
  LastName = "czetsuya",
  Country = Entities.Country.First(p=>p.CountryId==countryId),
  Country = Entities.Province.First(p=>p.CountryId==provinceId),
}
Entities.AddToPerson(person);
Entities.SaveChanges();