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_31 (launched VARCHAR, time_elapsed VARCHAR)
### Question:
What Launched has Time elapsed of 1991 days (5 yr, 5 mo, 12 d)?
### Answer:
SELECT launched FROM table_name_31 WHERE time_elapsed = "1991 days (5 yr, 5 mo, 12 d)"