Table: olympic_coins_2
Columns: year
denomination
reverse
weight
diameter
fineness
series

Question: What is the fineness of the 2008 chinese cuju sport Reverse?
SQL: SELECT "fineness" FROM olympic_coins_2 WHERE "year" = 2008 AND "reverse" = 'chinese cuju sport'

Question: What's the diameter of the 2006 equestrian Reverse?
SQL: SELECT "diameter" FROM olympic_coins_2 WHERE "year" = 2006 AND "reverse" = 'equestrian'

Question: What denomination was produced in 2006?
SQL: SELECT "denomination" FROM olympic_coins_2 WHERE "year" = 2006

Question: What was the fineness prior to 2007?
SQL: SELECT "fineness" FROM olympic_coins_2 WHERE "year" < 2007

Question: What does the ii Series weigh?
SQL: SELECT "weight" FROM olympic_coins_2 WHERE "series" = 'ii series'