CREATE TABLE table_55023 ("Peak" TEXT, "Height  ( m ) " FLOAT, "Prom.  ( m ) " FLOAT, "Class" TEXT, "Parent" TEXT)

Which class has a peak named fountains fell south top?
SELECT "Class" FROM table_55023 WHERE "Peak" = 'fountains fell south top'
SELECT "Class" FROM "table_55023" WHERE "Peak" = 'fountains fell south top'