Annotating is just basically writing your thoughts about what you read, so there's no certain right or wrong answer.
To sum up the paragraph in short words, when the Constitution was created, Antifederalists feared that it would cause oppression and control them, while the Federalists thought it would put things in order.
You're thoughts about this could be anything, it depends on you really, but some examples could be that you agree or disagree with the Antifederalists that the bill of rights is important for Americans so we don't live under oppression and control under the government.
You could also disagree with the bill of rights, it's really up to you.
I hope this helped
