Matched context for lighting and heating

The page lists matched contexts for lighting and heating.

Share - lighting	Share - heating	Phrase
12.25%	5.46%	{lighting or heating} [purpose] device
3.89%	15.22%	{lighting or heating} [purpose] element
23.96%	2.22%	{lighting or heating} [purpose] system
5.15%	5.57%	{lighting or heating} [purpose] means
23.90%	0.51%	{lighting or heating} [purpose] circuit
0.78%	0.27%	provide {lighting or heating} [perform operation]