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_28793672_1 (audition_city VARCHAR, venue VARCHAR)

### Question ###
Where is the audition city when the venue is upi convention center?

### Accurate SQL ###

SELECT audition_city FROM table_28793672_1 WHERE venue = "UPI Convention Center"