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_12148147_2 ( first_year VARCHAR, third_year VARCHAR )

### Question ###
What is the first year course in the program where geometry is taken in the third year?

### Accurate SQL ###

SELECT first_year FROM table_12148147_2 WHERE third_year = "Geometry"