One problem with Noun Phrases is the fact that they can very complicated and difficult to explain. For example, it is quite easy to represent NP 1:
1. The girl
As we have seen, we can show this as follows:
But what about the following?
2. The tall girl
3. The three tall girls
4. A lot of tall girls
It gets quite complicated, so Noun Phrase was replaced with Determiner Phrase in order to handle the complexity.
The solution was to say that Noun Phrases are actually Determiner Phrases (DetP). Det takes NP as its complement just as C takes IP as its complement, just as I takes VP as its complement, just as V takes NP (sorry now it’s DP!) as its complement. This keeps everything very neat and tidy.
So NPs became DPs, with D taking NP as its complement. Very neat! Even so, how can we handle 3, repeated below?
3. The three tall girls
Where does three go in this phrase?
For some suggestions, check out the PowerPoint slides here.