However, possessive definite descriptions (John's daughter) and the weak definites (the son of Queen Juliana of the Netherlands) are neither unique nor necessarily familiar to the listener before they are spoken.
to the reductionist approaches are approaches to grammaticalization (Hopper and Traugott, 2003) in which grammar develops over time in such a way that each grammatical construction has some prototypical communicative functions, but may also have many non-prototypical communicative functions.