docudrama vs scenario

docudrama

noun
  • A type of drama (a film, a television show, or a play) that combines elements of documentary and drama, to some extent showing real events and to some extent using actors performing recreations of documented events. 

scenario

noun
  • An outline of the plot of a dramatic or literary work. 

  • An outline or model of an expected or supposed sequence of events. 

  • A screenplay itself, or an outline or a treatment of it. 

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