Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_68 (text_symbol VARCHAR, border VARCHAR, type_of_sign VARCHAR)
### Question:
Which sign has a red border and a warning sign?
### Answer:
SELECT text_symbol FROM table_name_68 WHERE border = "red" AND type_of_sign = "warning"