Instruct: Given a premise, retrieve hypotheses that are entailed by the premise.
Query: That's got to mean something, and if it means that we are limited in our ability to agree with the Europeans as they continually expand the term in light of their own vision of what copyright is about, then that's the meaning of a constitutional restriction.
we have limited ability to agree with Europeans with copyright
The copyright clause is a secret
the Copyright argument will be apply in the  First Amendment analysis. 
Perpetual copyright is only permitted under certain circumstances. 
Congress makes decisions regarding copyright
The Copyright Clause involves more than just the writing of the work.
Congress extended the terms of Federal copyright in a private copyright bill in 2003
there arent enough rights in the constitution
The lack of common law copyright was highlighted with the Wheaton decision. 
The 1976 extension could be unconstitutional and keep many people feeling in the dark.
Congress extended the terms of Federal copyright five separate times.
The Copyright Clause was drafted because people wanted a uniform rule. 
People who have copyrights should have more rights than others
The Necessary and Proper Clause applies to copyrighted creative works.
Studying the copyright clause should be required in school
France has adopted a rule that does not allow the copyright of hate speech
 Congress doesn't always grant copyright
Congress extended the terms of Federal copyright and patent protection of subsisting works in a single bill after 1998.

Other constitutional provisions affect the rule.
The author is explaining how the Government has a constitutional right to extend terms.
The copyright clause is top secret
The Framers new what they were doing when they made the Copyright Clause.
This discussion happened last year.
It has got to mean nothing.
Constitutional restriction is the binding of papers in a library.