She was obedient to her elders. In this sentence, how do you label the phrase "to her elders?" The subject of this sentence is 'She', the verb is 'was'. complement is 'obedient', what is to her elders'?
In a comment BillJ wrote:
The PP "to her elders" is Complement of the adjective "obedient". The AdjP "obedient to her elders" then functions as predicative complement of "be" in its ascriptive sense.