The present invention is related to a method for processing a question in natural language received at a server (2), comprising performing by a processing unit (21) of the server (2) steps of: (a) for each n-gram of the question which is not a stop word, from at least one given knowledge base of entities linked by relations, identifying as initial entities and initial relations the entities and relations of the knowledge base matching said n-gram; (b) generating a set of possible queries for entities or relations of said given knowledge base, as a function of the initial entities and initial relations identified for all the n-gram of the question; (c) ranking each query of said set of possible queries as a function of at least one predetermined criterion, so as to identify a top-ranked possible query; (d) executing said top-ranked possible query, and returning the result entities or relations.