<P>PROBLEM TO BE SOLVED: To provide a natural language analysis method which flexibly analyzes a natural language document including at least one vocabulary item so as to determine an author's attitude to entity, and also to provide a system and a program therefor. <P>SOLUTION: At least one actual value of at least one vocabulary item is determined by analyzing at least one vocabulary item in a context, and the attitude is determined based on at least the one actual value. Then, the author, the entity and the attitude are correlated with each other, and at least the one vocabulary item concerned codes the attitude relating to the entity. <P>COPYRIGHT: (C)2004,JPO&NCIPI 
NATURAL LANGUAGE ANALYSIS METHOD, SYSTEM AND PROGRAM