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_8 (class VARCHAR, part_4 VARCHAR)

### Question ###
What class in the word with part 4 "giheizan"?

### Accurate SQL ###

SELECT class FROM table_1745843_8 WHERE part_4 = "giheizan"