coffee bean vs oatmeal

coffee bean

noun
  • The seed of a tropical plant of the genus Coffea. Prepared by drying, roasting and grinding for making the beverage coffee. 

oatmeal

noun
  • A breakfast cereal made from rolled oats, cooked in milk and/or water. 

  • A light greyish brown colour, like that of oatmeal. 

  • Meal made from rolled or round oats. 

adj
  • Of a light greyish brown colour, like that of oatmeal 

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