Selecting Answers with Structured Lexical Expansion and Discourse Relations LIMSI's Participation at QA4MRE 2013. - Martin Gleize; Brigitte Grau; Van-Minh Pho; Anne-Laure Ligozat; Gabriel Illouz; Frédéric Gianetti; Loïc Lahondes (CLEF (Working Notes), 2013)