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_2840500_3 (player VARCHAR, nhl_team VARCHAR, position VARCHAR, nationality VARCHAR)

### Question ###
who is the person that plays left wing and is from canada that plays on the st. louis blues

### Accurate SQL ###

SELECT player FROM table_2840500_3 WHERE position = "Left Wing" AND nationality = "Canada" AND nhl_team = "St. Louis Blues"