pull-off vs siding

pull-off

noun
  • An area by the side of a road where vehicles may stop; a lay-by. 

  • The technique, when playing a string instrument, of using a finger of the fret hand to pluck a string by pulling the finger off the fretboard. 

adj
  • Able to be removed by pulling. 

siding

noun
  • A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for loading or unloading freight, storing trains or other rail vehicles; or to allow two trains on a same track to meet (opposite directions) or pass (same direction) (the latter sense is probably an American definition). 

  • A building material which covers and protects the sides of a house or other building. 

How often have the words pull-off and siding occurred in a corpus of books? (source: Google Ngram Viewer )