This report present the GSI QA system, a system of searching answers or QuestionAnswering. The system’s aim is to understand user questions, search for that information, retrieve it, extract it and present it. All in natural language. This has been achieved by using tools of natural language processing (NLP) an algorithms of Pattern Learning. The information which the system works may come from plain text files, PDF files or HTML files. The system is focus on the field of definitions or explanations of a concept through its properties or qualities. In addition, the system has been integrated into a system of evaluation of knowledge in a project focused on people who have certain disabilities.