encouraging vs facilitator

encouraging

noun
  • encouragement 

adj
  • supporting by giving encouragement 

  • giving courage, confidence or hope 

  • auspicious, or bringing good luck 

facilitator

noun
  • Something that facilitates 

  • A person who helps a group to have an effective dialog without taking any side of the argument, especially in order to reach a consensus. 

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