CREATE TABLE table_72908 ("Class" TEXT, "Part 1" TEXT, "Part 2" TEXT, "Part 3" TEXT, "Part 4" TEXT, "Verb meaning" TEXT)

What is the part 4 of the word with the part 1 'heizan'?
SELECT "Part 4" FROM table_72908 WHERE "Part 1" = 'heizan'
SELECT "Part 4" FROM "table_72908" WHERE "Part 1" = 'heizan'