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_25 (conf VARCHAR, original_nfl_team VARCHAR)

### Question ###
What conference did the player originally from the denver broncos play in?

### Accurate SQL ###

SELECT conf FROM table_name_25 WHERE original_nfl_team = "denver broncos"