For example, if you begin by describing a scenario, you can end with the same scenario as proof that your essay is helpful in creating a new understanding.

For example, as in a CSRF vulnerability in Google Mail. In this proof-of-concept attack, the victim would have been lured to a web site controlled by the attacker.

If proof of the pudding is in the eating, then li's son is an example of what food can do. The boy's eczema cleared up by itself after living on the farm for a period.