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_77 (main_use VARCHAR, year VARCHAR, town VARCHAR)

### Question ###
What is the main use of the structure that was in redfield, arkansas before 2004?

### Accurate SQL ###

SELECT main_use FROM table_name_77 WHERE year < 2004 AND town = "redfield, arkansas"