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_29486189_4 ( representative VARCHAR, first_elected VARCHAR, residence VARCHAR )

### Question ###
how many representatives from hanover twp were first elected in 2008

### Accurate SQL ###

SELECT COUNT(representative) FROM table_29486189_4 WHERE first_elected = "2008" AND residence = "Hanover Twp"