exploit brake_pads(car1)=
	preconditions:
		quality:car1,brake_months=6;
	postconditions:
		update quality:car1,is_in_compliance=false;
.

exploit exhaust_pipes(car1)=
	preconditions:
		quality:car1,exhaust_months=12;
	postconditions:
		update quality:car1,is_in_compliance=false;
.

exploit ac_filter(car1)=
	preconditions:
		quality:car1,odometer=120000;
	postconditions:
		update quality:car1,is_in_compliance=false;
		insert quality:car1,is_critical=true;
.