sentences:  The award is determined on the basis of scholarship, accomplishment and character.Thunderbird has a number of notable graduates, including Walid Chammah, former chairman of Morgan Stanley; Bob Dudley, the retired CEO of BP; and Luis Alberto Moreno, former Ambassador of Colombia to the United States and the current president of the Inter-American Development Bank.Lee Abbamonte, the youngest American to visit all 193 United Nations member states, graduated in 2010.