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 CLASS (PROF_NUM VARCHAR, CRS_CODE VARCHAR)
### Question:
How many professors are teaching class with code ACCT-211?
### Answer:
SELECT COUNT(DISTINCT PROF_NUM) FROM CLASS WHERE CRS_CODE = "ACCT-211"