but and ben vs semi

but and ben

noun
  • A two-roomed cottage; a small house or shack 

adv
  • In the inner and outer parts of a building 

semi

noun
  • A semi-detached house. 

  • A semifinal. 

  • A semi-trailer; a tractor-trailer; an eighteen-wheeler; an artic. 

  • A partial erection of the penis. 

How often have the words but and ben and semi occurred in a corpus of books? (source: Google Ngram Viewer )