Rest in peace recapture of these words, read as "come and rest in peace," has been transferred to the ancient Talmudic prayers, in a mixture of Hebrew and Aramaic of the 3rd century AD. It is used to this day in traditional Jewish ceremonies. Other variations include "Requiescat in pace et in amore" for "May she rest in peace and love", and “In pace requiescat et in amore”. The word order is variable because Latin syntactical relationships are indicated by the inflexional endings, not by word order. If “Rest in peace” is used in an imperative mood, it would be “Requiesce in pace”
Phrase structure grammar dividing line: Phrase structure grammar The term phrase structure grammar was originally introduced by Noam Chomsky as the term for grammar studied previously by Emil Post and Axel Thue (Post canonical systems). Some authors, however, reserve the term for more restricted grammars in the Chomsky hierarchy: context-sensitive grammars or context-free grammars. In a broader sense, phrase structure grammars are also known as "constituency grammars". The defining trait of phrase structure grammars is thus their adherence to the constituency relation, as opposed to the dependency relation of dependency grammars. In linguistics, phrase structure grammars are all those grammars that are based