benefit – n. a good or helpful result

review – n. report in a publication that gives an opinion about a product

contest – n. a competition

battery – n. a device for providing electric current

vapor – n. substance in the form of a gas or that consists of very small drops or particles mixed with the air

genuine – n. real, sincere or honest

surrogate – n. a person that takes the place or performs the duties of someone else

promote – v. give support to or make people aware of something

platform – n. a way of telling the public about your opinions