Instruct: Given a premise, retrieve a hypothesis that is 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.
constitutional restriction happens with Europeans
Copyright laws will destroy Europe
A European coming to America to self copyright for such reason is beyond my imagination.
an unlimited time would violate the Copyright Clause, leading to anger
The copyright clause in the constitution granted protection because there was an existing common law copyright.
Pages 34 to 36 describe that the limitation on exploitation and limitation of a copyright period in Europe is based upon the sales that occur in the country of origin of the work.  
The Copyright Clause has limitations 
The Congress wants to reserve the constitutional limit.
The copyright clause has limits 
I am against Europeans coming to American to copyright their work
an unlimited time would violate the Copyright Clause, people are mad
Constitutional restriction is the binding of papers in a library.
The Copyright Clause in the onstitution granted protection because there was an existing common law copyright.
an unlimited time would violate the Copyright Clause, adding to the confusion
The copyright clause has an independent constraint. 
 Congress extends subsisting copyright all the time. 
an unlimited time would violate the Copyright Clause, causing trouble
Someone has a clear idea of what the time is for violating the copyright clause.
Copyrights in Europe are the subject of part of the brief.
The Framers created the Copyright Clause in the Constitution because they all had an interest in a uniform rule for copyright protection.
The chances of an American's work being copyrighted by a European are very slim.
The petitioners are asking for a lengthy constitutional limitation.
We have no vision of our own about what copyright is about.
We are unlimited in our ability to agree.
This discussion happened last year.