Multiple knowledge intelligent system

Knowledge is a quite ambiguous word to understand, but it is quite important to know what it is in order to make an artificial intelligence. So "Knowledge" is firstly discussed and defined. Secondly within this definition, some problems facing for making Knowledge are discussed. For getting rid of these problems, a necessary mechanism and its structure are studied. And then, we introduce an intelligent knowledge system (multiple knowledge intelligent system), which has a characteristic of an easy construction of knowledge and also which is able to behave intelligently.