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_23 (weight VARCHAR, date_of_birth VARCHAR)
### Question:
What is the weight of the entry that has a date of birth of 1981-11-21?
### Answer:
SELECT weight FROM table_name_23 WHERE date_of_birth = "1981-11-21"