What nouns are acting as adjectives or proper in the sentence new England countryside is t he site of state fair early September?

Here's a breakdown of the nouns acting as adjectives or proper nouns in the sentence:

* New England: This is a proper noun functioning as an adjective, modifying "countryside." It tells us specifically which countryside is being discussed.

* September: This is a proper noun acting as an adjective, modifying "early." It tells us the specific month the state fair takes place.

Let me know if you'd like to explore other examples of nouns functioning as adjectives!