What is noun phrase? Do you know guys? Yeah, noun phrase are formed by a noun or pronoun and any modifiers, compelemnts, or determiners.
Example :
The most beautiful ring
The greatest King
An ugly cat
A lovely jacket
The determinative, that constituent which determines the reference of the noun phrase in its situational.
The premodification, which comprises all modifying or describing constituents before the head, other than the determiners.
The head, around which the other constituents cluster.

The structure of Noun Phrase:
Noun phrase : pre-modifiers + noun
Noun phrase : noun + post-modifier
Noun phrase : pre-modifiers + noun + post-modifier