You are presented with multiple paper abstracts, alongside the associated literature review and chapter titles. Given the provided information, you are going to do a literature review. Please generate a coherent literature review that synthesizes the content, draws connections between different works, highlights major findings, and identifies any gaps in the existing research.

Literature Review Title: A Survey and Classification of Controlled Natural Languages 
Chapter Title:  AFTER a person closes a barrier, (almost) always the barrier is shut. 
1. Abstract of Cited Paper (BIB001):  As clarity in the Crisis Management domain is crucial, and there exists an enormous amount of Crisis Management documents, a specific language resource (the Controlled Language for Crisis Management, CLCM) for editing Crisis Management instructions in English has been previously developed. Based on a specially designed controlled language evaluation experiment, we have determined that manual simplification, far from being easy, is an extremely time-consuming process and thus automatization is essential in order to facilitate the writing of clear instructions. This article describes this experiment which also aims to determine which operations should be privileged and are more urgent to be implemented in order to address the most critical issues first. 
2. Abstract of Cited Paper (BIB002):  In this paper, we present Coral, an interface in which complex corpus queries can be expressed in a controlled subset of natural English. With the help of a predictive editor, users can compose queries and submit them to the Coral system, which then automatically translates them into formal AQL statements. We give an overview of the controlled natural language developed for Coral and describe the functionalities of the predictive editor provided for it. We also report on a user experiment in which the system was evaluated. The results show that, with Coral, corpora of annotated texts can be queried more easily and more quickly than with the existing ANNIS interface. Our system demonstrates that complex corpora can be accessed without the need to learn a complicated, formal query language.

Literature Review:
A parser translates CPL sentences into a frame-based language with well-defined semantics. In contrast to most other logic-based CNL approaches with custom-built parsers, the parsing process of CPL involves different external tools and resources. An existing parser for unrestricted English is used to generate an intermediary logical form. Then, WordNet and other resources are used to make a "best guess." The resulting logical representation is then paraphrased and shown to the user for verification or correction. -P is a controlled language for writing service manuals and bulletins at General Motors developed in the 1990s. The goal was to improve translatability, as well as consistency and readability. The approach moved from an "author-centric model" towards a "hybrid model" that included the role of an editor, before it went to full production in 2000 . The CASL restrictions are defined by 62 rules, including restrictions on sentence structure, word order, vocabulary, and punctuation. This is an exemplary sentence: Several diseases result from asbestos exposure, with latency periods of 10 to 40 years or longer. Writers are supported by a software tool called CASLChecker. "Controlled English at Douglas"  ) was a language developed in 1979 by the McDonnell Douglas aerospace company for their technical manuals. It was based on a dictionary of about 2,000 words (most of them verbs), favoring short and simple words and aiming at a single word per meaning and a single meaning per word. In addition to the words of the dictionary, "nomenclature words" can be introduced. The goal was to improve readability, translatability, and standardization. It was probably influenced by CFE and had itself an influence on AECMA SE. -P  BIB002 BIB001 ) is a language for writing instructions about how to deal with crisis situations. The language is defined by about 80 simplification rules. These simplification rules include restrictions on text structure (e.g., "Write a title for every specific situation"), formatting (e.g., "Separate with a new line each block of instructions"), lexicon (e.g., "avoid technical terms"), syntax (e.g., "Avoid passive voice"), semantics (e.g., "Use only literal meaning"), and pragmatics (e.g., "Remove unimportant information"). BIB003 ) is a controlled language for expressing formal queries to annotated text corpora. It is influenced by ACE, but is much less expressive, simpler and more domain-specific. It is embedded into a query interface called Coral to enable users with no particular background in computer science to effectively use large corpora of annotated texts. This is an exemplary query: