Dear Mr. or Ms., I thank you for your efforts. I send this email to show who are Mohamed Ben Aouicha and Mohamed Ali Hadj Taïeb. Well, they are researchers in Computer science in the Faculty of Sciences of Sfax, University of Sfax. I invited them to write a proposal to WikiIndaba because they are the best cited and productive wikiresearchers in Africa. In fact, they worked for years now about how to use Wikipedia and Wiktionary to measure semantic relatedness between entities and build ontologies that can be used later in tasks like Machine Translation and Sentiment Analysis. Their works are published in widely recognized research journals and conferences and are available in https://scholar.google.ca/scholar?hl=en&as_sdt=0%2C5&q=mohamed+ben+a.... Yours Sincerely, Houcemeddine Turki