CREATE TABLE table_39459 ("Year" FLOAT, "Class" TEXT, "Team" TEXT, "Machine" TEXT, "Points" FLOAT, "Rank" TEXT, "Wins" FLOAT)

What class has nsr250 as the machine, with points greater than 97?
SELECT "Class" FROM table_39459 WHERE "Machine" = 'nsr250' AND "Points" > '97'
SELECT "Class" FROM "table_39459" WHERE "Machine" = 'nsr250' AND "Points" > '97'