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_17416221_1 (provincial_capital VARCHAR, province VARCHAR)
### Question:
what is the number of provincial captial where the province is northern cape?
### Answer:
SELECT COUNT(provincial_capital) FROM table_17416221_1 WHERE province = "Northern Cape"