Table schema:
CREATE TABLE table_name_84 (city VARCHAR, school VARCHAR, ihsaa_football_class VARCHAR, enrollment VARCHAR)

Question: Which city is Lawrenceburg school, with an IHSAA football class of aaa and less than 676 enrollments, located in?
SQL: SELECT city FROM table_name_84 WHERE ihsaa_football_class = "aaa" AND enrollment < 676 AND school = "lawrenceburg"