It seems that we have two different definitions for noun/nominal phrase.

In my vocabulary NP is a phrase whose head is a noun. It FUNCTIONS as a noun.

In gokuyum´s definition it seems to be the INNER STRUCTURE that counts.

It is no problem as long as the questioner knows what he/she means by the term.

But I wonder why. Maybe it has to do with the inner logics of the Turkish compounds. Btw, I find three alternatives for noun phrase: isim tamlaması sounds very much like what gokuyum is talking about, but do ad dizilimi and ad öbeği mean the same thing?

Thanks a lot guy and I appreciate your two opinions.

First, I am not a native speaker of Turkish. So, can you please provide English translation for your examples?

second, I respect others opinions but I totally agree with ABLA on the definition of the noun phrase.

thanks guys 

the failing

of an attempt

which concerns

the being bought of

two kilos of

sweet

juicy

red

tasty

organic

fresh

apples

which freshly picked off the branches

which are just like saying ´come and eat me´

and which whet one´s appetite

from a new supermarket

which was just opened

in the center or our town

last week