Petitioners submit such a blanket extension of existing terms exceeds Congress's power under the Copyright Clause and it violates the First Amendment. Now, the Government has responded to petitioners' argument in a way that betrays a simple but fundamental confusion.
Petitioners didn't send  such a blanket extension of existing terms.
( z1 send :polarity - :ARG0 ( z2 person :ARG0-of ( z3 petition ) ) :ARG1 ( z4 extend :ARG1 ( z5 term :ARG1-of ( z6 exist ) ) :ARG1-of ( z7 blanket ) :mod ( z8 such ) ) )