s = v.verbalize(numExpr6);
assertEquals("4.9 * 4 + numVar", s);
BooleanExpression boolExpr1 = new SimpleBooleanExpression(true);
BooleanExpression boolExpr2 = new SimpleBooleanExpression(false);
BooleanExpression boolExpr3 = new ReferenceBooleanExpression(var);
BooleanExpression boolExpr4 = new BooleanNumberExpression(numExpr1, "==", numExpr2);
BooleanExpression boolExpr5 = new BooleanNumberExpression(numExpr1, "!=", numExpr2);
BooleanExpression boolExpr6 = new BooleanNumberExpression(numExpr1, "<=", numExpr2);
BooleanExpression boolExpr7 = new BooleanNumberExpression(numExpr1, ">=", numExpr2);