This is an important part of the drafting and proofreading process where you must evaluate how effective each word is, or combinations of words are.
Draft sentence:
If you have good quality family time it is like a future investment.
Edited sentence:
To invest in your future is to spend time with your family.
In the edited sentence, the writer has selected and rearranged keywords, making the message more direct.
Draft sentence:
I believe that genetically modified food should be labelled so that consumers learn to make an informed choice when purchasing food.
Edited sentence:
Genetically modified food should be labelled so that consumers learn to make an informed choice when purchasing food.