(A precedent is a previous case that sets an example, notably in law. The plural is precedents, which should not be confused with the homophone precedence, which is the state of superiority or higher...
Obama gave a precendent to African American People to run for President.
the predicate of the sentence is usually called the verb in elementary school
This to a large extent sets a precedent for the rest of the exhibition
I would hate to set a precedent by answering all your homework questions.The Supreme Court overturned a ruling previously used as a precedent.