CREATE TABLE table_21723 ("Class" TEXT, "Part 1" TEXT, "Part 2" TEXT, "Part 3" TEXT, "Part 4" TEXT, "Verb meaning" TEXT)

What is part 1 of the verb in class 4
SELECT "Part 3" FROM table_21723 WHERE "Class" = '4'
SELECT "Part 3" FROM "table_21723" WHERE "Class" = '4'