Table: assen_sbk_2007
Columns: rider
bike
laps
time
grid

Question: What is the average number of laps for max biaggi
SQL: SELECT AVG("laps") FROM assen_sbk_2007 WHERE "rider" = 'max biaggi'

Question: What bike does dean ellison ride?
SQL: SELECT "bike" FROM assen_sbk_2007 WHERE "rider" = 'dean ellison'