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_29 (experience VARCHAR, year_at_cu VARCHAR, position VARCHAR)

### Question ###
The graduate assistant who was in the 1st year at CU has what experience?

### Accurate SQL ###

SELECT experience FROM table_name_29 WHERE year_at_cu = "1st" AND position = "graduate assistant"