housebroken vs pliant

housebroken

adj
  • Of animals: trained to avoid urinating or defecating in the house, except within a litterbox, toilet, or other receptacle. 

pliant

adj
  • Capable of plying or bending; readily yielding to force or pressure without breaking 

  • Easily influenced; tractable. 

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