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_21 (actor VARCHAR, duration VARCHAR, soap_opera VARCHAR)

### Question ###
Which actor played on Home and Away for 20 years?

### Accurate SQL ###

SELECT actor FROM table_name_21 WHERE duration = "20 years" AND soap_opera = "home and away"