Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_28853064_15 (winner VARCHAR, mountains_classification VARCHAR, team_classification VARCHAR)
### Question:
Who were the winners if the Mountain Classification award was given to Oscar Solis and Team Classification was given to EPM-Une?
### Answer:
SELECT winner FROM table_28853064_15 WHERE mountains_classification = "Oscar Solis" AND team_classification = "EPM-UNE"