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Presidential Candidates Barack Obama and John McCain debated in Mississippi on Sept. 26. You heard them, but what exactly did they say? Here's one way to analyze their responses. Below are two "word trees," one for each candidate generated from the text of their remarks during the debate. To see if and how a candidate used a certain word or phrase, type it in the search box and click "enter." You can view instances with the word at the beginning of a series of words, or at the end.