Noting that the sentence memory models formulated in the 1970s need to be altered so as to be consistent with the fact that people use prior knowledge to process new information, this report discusses issues to be considered in making such an alteration. The report focuses on three questions: (1) What conditions lead people to elaborate and organize input facts? (2) What are the mechanisms behind organization? and (3) How well can these organizational mechanisms be interfaced with the original theories of sentence memory? The report reviews some basics of how current sentence memory models represent and retrieve sentences and then illustrates three conditions that lead to an elaboration of representations. It then takes up each condition in detail, reviews the experimental data showing that the condition does indeed result in an organization of the input, and delineates the theoretical mechanisms involved. (FL)