CREATE TABLE table_9819 ("Rider" CLOB, "Bike" CLOB, "Laps" FLOAT, "Time" CLOB, "Grid" FLOAT)

What is the sum of the laps with a grid less than 28, retirement time, and a ducati 1098 f08 bikes?
SELECT SUM("Laps") FROM table_9819 WHERE "Grid" < '28' AND "Time" = 'retirement' AND "Bike" = 'ducati 1098 f08'
SELECT SUM("Laps") FROM "table_9819" WHERE "Bike" = 'ducati 1098 f08' AND "Grid" < '28' AND "Time" = 'retirement'