Matched context for originate and draw back

The page lists matched contexts for originate and draw back.

Share - originate	Share - draw back	Phrase
5.77%	9.46%	system [location] {originate or draw back}
4.55%	10.39%	chamber [location] {originate or draw back}
4.93%	8.76%	cylinder [location] {originate or draw back}