It contains -- the clause itself contains limitations, limited times, authors, exclusive rights and things of that nature. I don't think -- and the petitioners expressly disclaim the assertion that any substantive limitations in the "Promote the- Clause. What the Framers were saying is, we want to give Congress the authority to promote the progress of useful arts and sciences, and --
The clause most definitely contains limitations
( z1 contain :ARG0 ( z2 clause ) :ARG1 ( z3 limit ) :mod ( z4 definite :mod ( z5 most ) ) )