There isn't a general consensus among dictionaries whether "around" is an adverb or an adjective when it's used for showing a measurement of something in circumference.
So I'm interested to hear your opinion on it.
around — (adverb) in a circle or in circumference:
a tree five feet around
Am I right that if we consider "around" an adverb, then according to the book "The Cambridge Grammar of the English Language", parsing the phrase would be the following?:
The noun phrase "five feet" modifies the adverb "around".
The adverbial phrase "five feet around" modifies the noun "tree" (or maybe modifies the noun phrase "a tree" as an external modifier?).
around — (adjective) having a given circumference or perimeter:
a pond two miles around
Am I right that if we consider "around" an adjective, then according to the book "The Cambridge Grammar of the English Language", parsing the phrase would be the following?:
The noun phrase "two miles" modifies the adjective "around".
The adjectival phrase "two miles around" modifies the noun "pond".