The image below is a Document Arc Diagram generated from the text for the State of the Union Address for 2008. There is some interesting structure evident. There are two very distinctive groupings of arcs. The first is focused on domestic issues and arises from repeated use of the terms America, Americans, Congress, trust, tax, veto, health, housing, technology, and jobs. The second group of arcs is based on repeated use of the terms America, Qaeda, troops, terrorists, iraq, iraqi, afghanistan.
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State of the Union Adress, 2008