Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| School | Location | Mascot | Enrollment | IHSAA Class | IHSAA Football Class | # / County |
| --- | --- | --- | --- | --- | --- | --- |
| Cass | Walton | Kings | 504.0 | AA | AA | 09 Cass |
| Eastern Greentown | Greentown | Comets | 460.0 | AA | AA | 34 Howard |
| Hamilton Heights | Arcadia | Huskies | 742.0 | AAA | AAA | 29 Hamilton |
| Maconaquah | Bunker Hill | Braves | 703.0 | AAA | AAA | 52 Miami |
| Northwestern | Kokomo | Tigers | 566.0 | AAA | AA | 34 Howard |
| Peru | Peru | Tigers | 672.0 | AAA | AAA | 52 Miami |
| Taylor | Center | Titans | 475.0 | AA | AA | 34 Howard |
| Western | Russiaville | Panthers | 813.0 | AAA | AAA | 34 Howard |
Question:
Which IHSAA Football Class has an IHSAA Class of aa, and an Enrollment of 475?
Answer:
AA