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_name_80 ( winner VARCHAR, stage VARCHAR, team_classification VARCHAR, general_classification VARCHAR )

### Question ###
Who has a Team classification of la vie claire, a stage of 20, a General classification of greg lemond?

### Accurate SQL ###

SELECT winner FROM table_name_80 WHERE team_classification = "la vie claire" AND general_classification = "greg lemond" AND stage = "20"