Instruct: Given a premise, retrieve a hypothesis that is entailed by the premise.
Query: But it is hard to understand how, if the overall purpose of the Copyright Clause is to encourage creative work, how some retroactive extension could possibly do that. I -- one wonders what was in the principle 13 difficult principle given to Congress and has been exercised so repeatedly out there that would ever kick in?
The Copyright Clause is a title that include alliteration.
Congress extended the terms of Federal copyright in a private copyright bill in 2003
The Copyright Clause is very easy to violate.
there is a  Copyright Clause argument. 
The Copyright Clause is for encouraging only film
The author is talking about how the constitution has a clause that gives the government the power to extend terms. 
The most plausible explanation of this rule favors stimulating former new works 
The Copyright Clause can't be violated.
Limited Time would violate the the Copyright Clause for sure.
The problem with the extension only extending to subsisting copyrights is the only issue with it at the moment.
The court feels the same way about copyright laws as it did 50 years ago.
Congress made a law to separate and help older copyright owners
The 1976 extension could be unconstitutional and keep many people feeling in the dark.
For 125 years, this Court has taken into account what Justice Breyer was leading up to in regard to a limit for originality.
If Copyright 16 Clause was properly read, owners of verbatim works would be upset
The 1976 extension could be unconstitutional and off putting.
Congress made the spark of creativity
Several of the States were too lazy to enact those copyright laws
The original copyright law was amended by the 105th congres
The copyright clause has remained the same for over a century.
The rule exists to stimulate former new works 
The First Amendment argument about retrospective extension is the strongest argument in politics 
the Copyright Clause is only valid in canada
The Copyright Clause is meant to discourage creativity
The Copyright Clause is only for art