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_7 (rank INTEGER, period VARCHAR, games VARCHAR)
### Question:
What is the rank for the period of 1973–89, with less than 423 games.
### Answer:
SELECT SUM(rank) FROM table_name_7 WHERE period = "1973–89" AND games < 423