Distinguish between Langue and Parole.Langue is a system that contains a set of formulas that control grammatical sentences while parole is a statistical description of language usage. These two objects are coherent (related to each other).De Saussure distinguishes between langue and parole because for him, when a linguist attempts to link any linguistic-related field to language study, things become more chaotic. Therefore, coherent objects need to be set aside to facilitate linguistic studies.In this case, when a researcher focuses only on one object, for example Langue, which is a system that has a set of formulas that control grammatical sentences, then linguists will know what they are trying to reproduce.