please forgive me just was typing in cap no disrepected to anybody. i need a good example of how to rewrite this fragment sentence the endeavor to influence a specific audience to buy a goods or service or a specific belief i need someone just to show me what wrong with this sentence

The endeavor to influence a specific audience to buy a goods or service or a specific belief . . .

Obviously this sentence isn't complete. It needs a verb and more information.

How about finishing it this way?

. . . is the purpose of advertising.