CREATE TABLE table_58311 ("Sport" TEXT, "Year" FLOAT, "Class" TEXT, "Coach" TEXT, "Record" TEXT)

What class is volleyball in 2000?
SELECT "Class" FROM table_58311 WHERE "Sport" = 'volleyball' AND "Year" = '2000'
SELECT "Class" FROM "table_58311" WHERE "Sport" = 'volleyball' AND "Year" = '2000'