Most of the grammatical functions realized by phrases in the sentence fall into two classes: arguments and adjuncts. Distingusishing between these classes is one of our Parser's features. In this article we discuss some of the semantic characteristics of the two classes and mention a structural difference between them.
The Contextors' Parser assigns syntactic structure trees to strings of words in English. Developing the parser is a fresh trial of teaching a machine rules about different linguistic aspects of English. In the process of adding rules to the parser and examining its solutions, some interesting theoretical issues arise.