Matched context for half-waves and excursion

The page lists matched contexts for half-waves and excursion.

Share - half-waves	Share - excursion	Phrase
17.76%	2.53%	voltage {half-waves or excursion}
11.09%	3.83%	positive [certainty] {half-waves or excursion}
4.65%	6.09%	negative [effectiveness] {half-waves or excursion}