Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_30808 ( "Stage" real, "Winner" text, "General classification" text, "Points classification" text, "Mountains classification" text, "Sprints classification" text, "Team classification" text )

### Question ###
In what stage did Jaime Vergara won, Team Classification was given to EPM-Une and Mountain Classification winner was Oscar Solis?

### Accurate SQL ###

SELECT "Stage" FROM table_30808 WHERE "Team classification" = 'EPM-UNE' AND "Mountains classification" = 'Oscar Solis' AND "Winner" = 'Jaime Vergara'