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_11 (imperial VARCHAR, ratio VARCHAR)
### Question:
What are the imperial size for the unit that has a ratio of 1/20?
### Answer:
SELECT imperial FROM table_name_11 WHERE ratio = "1/20"