caracole vs opera

caracole

noun
  • A spiral staircase. 

  • A combat maneuver where riders of the same squadron turn simultaneously to their left or to their right. 

  • A half-turn performed by a horse and rider in dressage. 

verb
  • To execute a caracole. 

opera

noun
  • A building designed for the performance of such works; an opera house. 

  • A theatrical work, combining drama, music, song and sometimes dance. 

  • The score for such a work. 

  • Any showy, melodramatic or unrealistic production resembling an opera. 

  • A company dedicated to performing such works. 

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