What are the 3 most common cloud covers in the zip code of 94107?
SELECT cloud_cover FROM weather WHERE zip_code  =  94107 GROUP BY cloud_cover ORDER BY COUNT (*) DESC LIMIT 3
SELECT cloud_cover FROM weather WHERE zip_code  =  94107 GROUP BY cloud_cover ORDER BY COUNT (*) DESC LIMIT 3
[{'cloud_cover': 5}, {'cloud_cover': 4}, {'cloud_cover': 6}]