besom vs street sweeper

besom

noun
  • A broom made from a bundle of twigs tied onto a shaft. 

  • Any cleansing or purifying agent. 

  • A troublesome woman. 

street sweeper

noun
  • A person who is employed to sweep streets, pavements, and gutters, keeping them clear of litter. 

  • A machine used to sweep streets. 

How often have the words besom and street sweeper occurred in a corpus of books? (source: Google Ngram Viewer )