set the operator_list to {"is", "is not", "begins with", "does not begin with", "ends with", "does not end with", "contains", "does not contain", "is in", "is not in", "is equal to", "is not equal to", "is greater than", "is greater than or equal to", "is not greater than or equal to", "is less than", "is less than or equal to", "is not less than or equal to", "comes after", "comes before"}