The study is a contribution on the semantic processing of natural languages. Relational grammars are developed for specific areas of German and English. A relational grammar is a context-free grammar with a semantics based on relational algebra. Relational algebra has constants and operations but no variables and is therefore better suited to the semantics of natural languages than predicate logic. The study is of interest for language theory, semantics, semiotics, computer linguistics, knowledge representation.
