What is the role of descriptive attributes in the situational aspect of articles ?

1) particularly worthy of note in the constructions of  nominal "convergencies"

2) particularly worthy of note in the constructions of syntactic "convergencies"

3) to  contrast the definite article with the noun against the two other forms of article determination of the noun

4) to involve the interpretation of the article non-use as the zero form of the article

5) to serve as an indicator of the type of nounal information