mandate vs question

mandate

noun
  • The order or authority to do something, as granted to a politician by the electorate. 

  • An order by the League of Nations to a member nation to establish a government responsible for a conquered territory, as the colonies of Germany after World War I. 

  • A period during which a government is in power. 

  • Such a territory. 

  • An official or authoritative command; an order or injunction; a commission; a judicial precept; an authorization. 

verb
  • To authorize. 

  • To make mandatory. 

question

noun
  • A proposal to a meeting as a topic for deliberation. 

  • A subject or topic for consideration or investigation. 

  • A sentence, phrase or word which asks for information, reply or response; an interrogative. 

  • A doubt or challenge about the truth, accuracy, or validity of a matter. 

verb
  • To ask a question or questions; inquire or seek to know; examine. 

  • To ask questions of; to interrogate; to ask for information. 

  • To raise doubts about; have doubts about. 

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