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_1745843_6 (part_3 VARCHAR, class VARCHAR)

### Question ###
What's the part 3 of the verb whose class is 4?

### Accurate SQL ###

SELECT part_3 FROM table_1745843_6 WHERE class = "4"