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 (to_par INTEGER, country VARCHAR, year_s__won VARCHAR)
### Question:
What is the sum of To Par, when Country is "United States", and when Year(s) Won is "1973"?
### Answer:
SELECT SUM(to_par) FROM table_name_23 WHERE country = "united states" AND year_s__won = "1973"