uninstall group exploit remove_all_B(b)=
	preconditions:
		quality:b,B_is_installed=true;
	postconditions:
		update quality:b,B_is_installed=false;
.

uninstall group exploit remove_all_C(c)=
	preconditions:
		quality:c,C_is_installed=true;
	postconditions:
		update quality:c,C_is_installed=false;
.