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_28132970_5 (breadth VARCHAR, propulsion VARCHAR)
### Question:
How many breadth entries are there when propulsion is jet?
### Answer:
SELECT COUNT(breadth) FROM table_28132970_5 WHERE propulsion = "Jet"