Matched context for sparkplug and invert

The page lists matched contexts for sparkplug and invert.

Share - sparkplug	Share - invert	Phrase
22.71%	1.04%	{sparkplug or invert} voltage [perform operation]
23.69%	0.65%	{sparkplug or invert} waveform [perform operation]
6.22%	0.47%	circuit [does] {sparkplug or invert}
5.18%	0.30%	{sparkplug or invert} circuit [perform operation]