CREATE TABLE table_47020 ("Class" TEXT, "Part 1" TEXT, "Part 2" TEXT, "Part 3" TEXT, "Part 4" TEXT, "Verb meaning" TEXT)

What is the part 4 entry for class 7b?
SELECT "Part 4" FROM table_47020 WHERE "Class" = '7b'
SELECT "Part 4" FROM "table_47020" WHERE "Class" = '7b'