Jaime Vergara ชนะ Team Classification ในรอบใด โดยมอบให้กับ EPM-Une และผู้ชนะ Mountain Classification คือ Oscar Solis?ไม่จำเป็นต้องใช้ตารางทั้งหมด
In what stage did Jaime Vergara won Team Classification was given to EPM-Une and Mountain Classification winner was Oscar Solis?It is not neccessary to use all the tables.
 table_28853064_15:  (stage [ VARCHAR ] winner [ VARCHAR ] team_classification [ VARCHAR ] mountains_classification [ VARCHAR) ]
SELECT stage FROM table_28853064_15 WHERE team_classification = "EPM-UNE" AND mountains_classification = "Oscar Solis" AND winner = "Jaime Vergara"