[AEP]Mauritania's incumbent leader Mohamed Ould Abdel Aziz has overwhelmingly won presidential election, garnering 81.89 percent of the votes, preliminary results show.According to the results published by the Independent National Electoral Commission (INEC) on Sunday, Abdel Aziz was firmly ahead of his rival, Biram Ould Dah Ould Abeid, who obtained 8.67 percent of Saturday's ballots.Another candidate, Ibrahima Moctar Sarr, was in third place with 4.44 percent while the only female candidate in the election, La...