https://docs.google.com/present/edit?id=0AazZarv-NW8SZDhkZ25mYl8xZm0zZ3MzbW0&hl=en
https://docs.google.com/present/edit?id=0AazZarv-NW8SZDhkZ25mYl81OGd2azN3d2R6&hl=en
https://docs.google.com/present/edit?id=0AazZarv-NW8SZDhkZ25mYl8zMDZuZDJkaGNkaA&hl=en
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