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_47 ( years VARCHAR, nation VARCHAR, assist VARCHAR, rank VARCHAR )

### Question ###
Which years did the USA have a rank lower than 6 and an assist number less than 26?

### Accurate SQL ###

SELECT years FROM table_name_47 WHERE assist < 26 AND rank < 6 AND nation = "usa"