The category of voice:Preliminaries: syntactic and semantic valence. Mary gave a book to a
small boy.
syntactic/functional [NP NP PP] (Categorial)
subcategorization: [SUBJ OBJ IOBJ] (Relational)
lexical transitivity: (arg1 arg2 arg3)
semantic/thematic:
•simile –A class is a blueprint or DNA for creating a cow. But – it is the actual cow that produces milk, not the cow class –All cows are made from the cow class Methods •Messages = Requests in avenue •A request is just that: a requestfor an object to do something. •Something ranges from changing properties (like gender) to doing something like copying itself or printing. •Properties are “things”in the object that can be changed. Instansion •A class is instantiated when it is used to stamp out one or more objects of its type •Objects that are created from a given class are called instances of that class •Encapsulation means that the properties and methods of an object are not directly accessible to the outside world. •Inheritance is the ability to create new classes based on an existing class. The new class inherits all the properties and methods and events of the base class, and can be customized with additional properties and methods.