Database: european_football_2
Question: For the team "Hannover 96", what was its defence aggression class on 2015/9/10?
SQL: SELECT t2.chanceCreationShootingClass FROM Team AS t1 INNER JOIN Team_Attributes AS t2 ON t1.team_api_id = t2.team_api_id WHERE t1.team_long_name = 'Hannover 96' AND t2.`date` LIKE '2015-09-10%'