A2:=REF(C,2) REF(O,2) AND REF(C,1) REF(C,2);
A3:=REF(C,2) REF(O,2) AND REF(C,1) REF(O,2);
AA:=A1 OR A2 OR A3;
B1:=C O AND C REF(H,1);
B2:=Abs((REF(V,1)-LLV(V,N))/LLV(V,N)) =0.1;
B3:=V/REF(V,1) =1.8;
BB:=B1 AND B2 AND B3;
DB:AA AND BB;