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_19905183_1 (team VARCHAR, head_coach VARCHAR)
### Question:
In how many teams is Waqar Younis the head coach?
### Answer:
SELECT COUNT(team) FROM table_19905183_1 WHERE head_coach = "Waqar Younis"