X_1:=(OPEN-REF(CLOSE,3))/REF(CLOSE,3);X_2:=X_1>0.18;X_3:=OPEN>REF(CLOSE,1);X_4:=OPEN>CLOSE;X_5:=CLOSE>REF(CLOSE,1);X_6:=REF(X_1,2)<0.2;XG:X_2 AND X_3 AND X_4 AND X_5 AND X_6;