9. A computer-readable medium having an organization activity database stored thereon, wherein nouns prescribing items handled in an organization activity are recorded as data defined by relating specified concepts of person, organization, article, document, meeting and event composing the organization activity as an element to be subtracted from a real model, the organization activity being a collection of actions of persons and organizations, times being hierarchized by their connotative relation, with items handled in the organization activity, and verbs prescribing actions accompanying the organization activity and examples which can be taken by the verb are recorded as data, by fitting each verb and each example to sentence patterns defined by relating each verb and each example with the specified concepts.
9. A computer-readable medium having an organization activity database stored thereon, wherein nouns prescribing items handled in an organization activity are recorded as data defined by relating specified concepts of person, organization, article, document, meeting and event composing the organization activity as an element to be subtracted from a real model, the organization activity being a collection of actions of persons and organizations, times being hierarchized by their connotative relation, with items handled in the organization activity, and verbs prescribing actions accompanying the organization activity and examples which can be taken by the verb are recorded as data, by fitting each verb and each example to sentence patterns defined by relating each verb and each example with the specified concepts. 10. A computer-readable medium having an organization activity database stored thereon as recited in claim 9, wherein the connotative relation includes an "is-a" relation, a "part-whole" relation, a membership relation, and a physical relation representing a graph relation.