President obama says, "it's no secret that those of us here tonight have had our differences over the last two years. the debates have been contentious; we have fought fiercely for our beliefs." the line above contains an example of a(n)

The line is an example of a direct quotation. That is when a quotation by someone is unchanged and presented in its entirety. Of course, it's a part of a larger speech, but it's unchanged and can be as such analyzed for various things that the linguists would be searching for.

The world's kindest marching band.

Iam not sure sorry