What benefit ¹  do people ²  get from all the effort which ³  they expend ⁴  on earth? ⁵ 

Fools ¹  are placed in many positions of authority, ²  while wealthy men sit in lowly positions.

I thought deeply ¹  about the effects of ²  indulging ³  myself ⁴  with wine (all the while ⁵  my mind was guiding me ⁶  with wisdom) ⁷  and the effects of ⁸  behaving foolishly, ⁹  so that I might discover what is profitable for people to do on earth during the few days of their lives.