Relationals are quasi-nouns expressing some relationship (sometimes spatial, but not always) to their possessive complement.
grammar | grammar school | Sydney Grammar School | Melbourne Grammar School | English grammar | Royal Grammar School | Royal Grammar School Worcester | Brisbane Grammar School | Guildford Grammar School | Caulfield Grammar School | Royal Grammar School, Newcastle | Queen Elizabeth Grammar School, Wakefield | Lancaster Royal Grammar School | Grammar School | Takapuna Grammar School | Simon Langton Grammar School for Boys | Royal Grammar School, High Wycombe | Pulteney Grammar School | Loughborough Grammar School | Ivanhoe Grammar School | Grammar | German grammar | Geelong Grammar School | CMS Grammar School, Lagos | Wolverhampton Grammar School | William Hulme's Grammar School | Royal Grammar School, Guildford | Prince Henry's Grammar School, Otley | Predicate (grammar) | Pipil language |