I need walking directions to get me from Gurnee Mills to Great America.
[IN:GET_DIRECTIONS I need [SL:METHOD_TRAVEL walking ] directions to get me from [SL:SOURCE [IN:GET_LOCATION [SL:POINT_ON_MAP Gurnee Mills ] ] ] to [SL:DESTINATION [IN:GET_LOCATION [SL:POINT_ON_MAP Great America ] ] ] . ]