contain vs encourage

contain

verb
  • To include as a part. 

  • To put constraints upon; to restrain; to confine; to keep within bounds. 

  • To hold inside. 

  • To have as an element or subset. 

encourage

verb
  • To foster, give help or patronage 

  • To mentally support; to motivate, give courage, hope or spirit. 

  • To spur on, strongly recommend. 

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