Table: wushi_asian_games_medals
Columns: year
location
gold
silver
bronze

Question: Who won silver in the year before 2010, the year Chan Ming Shu won gold?
SQL: SELECT "silver" FROM wushi_asian_games_medals WHERE "year" < 2010 AND "gold" = 'chan ming shu'

Question: What is the location for the year under 2010 and the year Hei Zhi Hong won silver?
SQL: SELECT "location" FROM wushi_asian_games_medals WHERE "year" < 2010 AND "silver" = 'hei zhi hong'

Question: Which location had a year over 2006?
SQL: SELECT "location" FROM wushi_asian_games_medals WHERE "year" > 2006