CREATE TABLE table_31425 ("Prefix class" TEXT, "Type and usage" TEXT, "Example" TEXT, "Equivalent" TEXT, "Reference" TEXT)

What is every prefix class for the equivalent of NTE160?
SELECT "Prefix class" FROM table_31425 WHERE "Equivalent" = 'NTE160'
SELECT "Prefix class" FROM "table_31425" WHERE "Equivalent" = 'NTE160'