adjective phrase

Hello Iglika

Here we have good English teachers. But I don’t think anyone here is acquainted with Chomsky's generative grammar theories well enough to answer your question. So I recommend you to study yourself and try to find the answers yourself by reading the articles in  U-Penn Linguistics.

paco

Dear paco, thank you for your advice I don't like Chomsky but my teacher does   

Best wishes
Iglika

P.S. goldmund, I'll tell you if you are right after reading the U-Penn Linguistics

(a^(new^((history)^(of Korea)))

history=Head in NP
of Korea=Complement (PP) or AjP (Spec)?
     They storied Korea. --> "of Korea" is a Complement(=PP).
     Koreans storied. --> "of Korea" is a Spec to history.
new=AjP= Spec to ((history)^(of Korea))
a =DP=Spec to (new^((history)^(of Korea))

As for (which …), I cannot get what is it. My guess is rather:
a^((which..)^(new H of K))  --> Spec(AjP) to (new H of K)

"Modifiers" is not a Chomskian term.

paco

Hello Iglika

I'm sorry I could not give you definite answers. Frankly speaking, I myself do not know much about generative grammar. But please remind there is a possibility your teacher uses grammatical terms in his/her own way. As far as I know, "modifier" is a term used by traditional grammarians. On the other hand "specifier" is a term used by Chomskians. "Head" is also a term used by Chomskians in constituent analyses, but some traditional grammarians use it to mean a core noun in a noun phrase. So I think your teacher might teach you his/her own theory of English grammar, mixing Chomsky's theory and traditional grammar theories.

paco