In the field of conservation of energy, we might care to turn off lights when not in use may be labeled by text safai, directs the reader to want to conserve energy.
In energy conservation We might care about turning off lights when not in use. May be achieved by tagging them on fire with a Cheez convince the reader wishes to save energy.
In the field of energy conservation. We may be in charge of to turn off the lights when not in use. Could the labeled according to swing C fire with the text to persuade readers want to save energy.