Beautiful horses 
But it is the modest mule  
That carries our load 
 
Tidy office building 
Busy and efficient place  
Kept clean by janitors 
  
Our great cities 
Without armies of cleaners   
Uninhabitable  
 
Galloping filly  
Bets are on black beauty  
The jenny won
oskar hansen
http://www.poemhunter.com/poem/4-senryu-the-modest/