Tim tang level 5

broccoli has 1 set of double letters...CC
balloon has 2 sets...LL and OO
so an occupation with 3 sets would be?....i don't know i still havent gotten it  HINT:for some reason when I posted an incorrect answer for this and tried another, the level5 changed to level 5, with a space and it wouldn't let me enter the correct answer. Once I fixed that, level 6. bookkeeper.