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_30729 ( "Institution" text, "Nickname" text, "Location" text, "Founded" real, "Joined ACC" real, "School Type" text, "ACC Football Titles" real )

### Question ###
how many acc football titles have been won by the institution nicknamed tar heels?

### Accurate SQL ###

SELECT "ACC Football Titles" FROM table_30729 WHERE "Nickname" = 'Tar Heels'