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Columbus Academy sixth graders Sam  Wittman (top from left), Libby Sirak, Leya Mohsin  and Ricardo Deaguiar unsuccessfully try to fend off David Wexner (bottom right) and Julia Rizk (bottom left) as they grab an orange flag from the boat during a naval battle at the school's pool on Friday, February 13, 2009. Each boat in the battle had flags on it that the other boats had to pull off to officially sink them. Students created the boats before testing them, racing them and then having a water fight during a sixth grade social studies examination of Greek naval battles.