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_2001348_1 (revising_convention_s_ VARCHAR, denunciations__september_2011_ VARCHAR)
### Question:
What were the revising conventions commentary with a denunciation of 21?
### Answer:
SELECT revising_convention_s_ FROM table_2001348_1 WHERE denunciations__september_2011_ = 21