In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: at the Open 13 Link Information: It took place at the Palais des Sports in Marseille, France, from 20 February through 26 February 2010. Question: On what date did the Open 13 begin?
Answer: 20 February