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_28 (diameter VARCHAR, year_of_issue VARCHAR)
### Question:
Which Diameter has a Year of Issue of 1977?
### Answer:
SELECT diameter FROM table_name_28 WHERE year_of_issue = 1977