Question: Who was the winner if the Mountains Classification award was given to Jaime Vergara and the Team Classification award is given to Col es Pasion Café De Colombia 472?
SQL: SELECT "Winner" FROM "1-28853064-15" WHERE "Mountains classification" = 'Jaime Vergara' AND "Team classification" = 'Col es Pasion Café De Colombia 472';

Question: Who was the General Classification awardee if Sergio Luis Henao was the winner and the Points Classification award was given to Sergio Luis Henao?
SQL: SELECT "General classification" FROM "1-28853064-15" WHERE "Winner" = 'Sergio Luis Henao' AND "Points classification" = 'Sergio Luis Henao';

Question: Who were the winners if the Mountain Classification award was given to Oscar Solis and Team Classification was given to EPM-UNE?
SQL: SELECT "Winner" FROM "1-28853064-15" WHERE "Mountains classification" = 'Oscar Solis' AND "Team classification" = 'EPM-UNE';

Question: In what stage did Jaime Vergara won, Team Classification was given to EPM-UNE and Mountain Classification winner was Oscar Solis?
SQL: SELECT "Stage" FROM "1-28853064-15" WHERE "Team classification" = 'EPM-UNE' AND "Mountains classification" = 'Oscar Solis' AND "Winner" = 'Jaime Vergara';