Table schema:
CREATE TABLE campuses (id VARCHAR, campus VARCHAR); CREATE TABLE csu_fees (campusfee VARCHAR, campus VARCHAR, year VARCHAR)

Question: What is the campus fee of "San Francisco State University" in year 2000?
SQL: SELECT t1.campusfee FROM csu_fees AS t1 JOIN campuses AS t2 ON t1.campus = t2.id WHERE t2.campus = "San Francisco State University" AND t1.year = 2000