Secondly, if poetry has a conceptual form which arises, like all other discourse,from the mutual interdependence of langue and parole, then the distinction between poetry and other discourses, particularly science, will be semantic or "technical" rather than epistemological. Finally, the task of criticism can be understood as a logical, scientific paraphrase, less a way of putting "in other words" the meaning of a poem than a comparison of the semantically autonomous poetic context with the "infrastructure" of social, historical, and ideological conditions inherent in the language from which it originated.