black and white vs unambiguous

black and white

adj
  • Easily divided into diametrically opposing camps or schools of thought. 

noun
  • The police, a police officer or the clothing they wear. 

  • A type of giant cookie (about 8 inches diameter) with icing on the top side: half white, half dark chocolate. 

  • A police patrol car. 

unambiguous

adj
  • Clear, and having no uncertainty or ambiguity. 

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