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_1831309_1 ( years_of_kindergarten VARCHAR, canton VARCHAR )

### Question ###
How many years of kindergarten is provided in Ticino?

### Accurate SQL ###

SELECT years_of_kindergarten AS provided FROM table_1831309_1 WHERE canton = "Ticino"