gula vs windpipe

gula

noun
  • A capping moulding; a cymatium. 

  • The upper front of the neck, next to the chin; the upper throat. 

  • A plate which in most insects supports the submentum. 

windpipe

noun
  • The anus. 

  • A section of road or bridleway which has a reputation for having strong crosswinds or localized wind swirls. 

  • Any duct for air or other gas. 

  • The trachea. 

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