Knowledge base modelling based on linguistics and founded in logic

Knowledge Base Systems should in principle be able to store and manipulate any sort of knowledge, including vague (indefinite) knowledge, knowledge about events and obligations and knowledge about temporal aspects. In this paper a language, CPL, is introduced in which all these different kinds of knowledge can be expressed. This language is based on the linguistic theory of Functional Grammar. The semantics of this language is based on a logical interpretation of the language structures, for which we use five different forms of logic: predicate, modal, deontic, dynamic and temporal logic. Inferences, based on these logics, that can be made within this language, are shown.