(Clockwise, photo 1) Las Pinas City Mayor Mel Aguilar (right) and Vice Mayor Mel Aguilar hold their Certificates of Candidacy (COCs) for vice mayor and mayor; (photo 2) Parañaque City’s Aileen Claire Olivarez shows her COC for mayor; (photo 3) Businessman Carlo Aguilar files his COC and will run for Las Piñas City mayor; and (photo 4) Retired Marine Colonel Ariel Querubin submits his COC and will run for senator.