In linguistics, selection denotes the ability of predicates to determine the semantic content of their arguments.[1] Predicates select their arguments, which means they limit the semantic content of their arguments. One sometimes draws a distinction between types of selection; one acknowledges both s(emantic)-selection and c(ategory)-selection. Selection in general stands in contrast to subcategorization:[2] predicates both select and subcategorize for their complement arguments, whereas they only select their subject arguments. Selection is a semantic concept, whereas subcategorization is a syntactic one.[3] Selection is closely related to valency, a term used in other grammars than the Chomskian generative grammar, for a similar phenomenon.