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 no vision of our own about what copyright is about.
Must have their own vision if it is not able to agree with the European vision.
( z1 have :polarity - :ARG0 ( z2 we ) :ARG1 ( z3 envision :ARG0 z2 :ARG1 ( z4 copyright :topic ( z5 amr-unknown ) ) ) )