What are the different names for each station that has ever had 7 bikes available?
SELECT DISTINCT T1.name FROM station AS T1 JOIN status AS T2 ON T1.id  =  T2.station_id WHERE T2.bikes_available  =  7
SELECT DISTINCT T1.name FROM station AS T1 JOIN status AS T2 ON T1.id  =  T2.station_id WHERE T2.bikes_available  =  7
[{'name': 'Santa Clara at Almaden'}, {'name': 'San Salvador at 1st'}, {'name': 'St James Park'}, {'name': 'Arena Green / SAP Center'}, {'name': 'California Ave Caltrain Station'}, {'name': 'Powell Street BART'}, {'name': 'Clay at Battery'}, {'name': 'Davis at Jackson'}, {'name': 'Washington at Kearney'}, {'name': 'Post at Kearney'}, {'name': 'Harry Bridges Plaza (Ferry Building)'}, {'name': 'Embarcadero at Bryant'}, {'name': 'Temporary Transbay Terminal (Howard at Beale)'}, {'name': 'San Francisco City Hall'}, {'name': 'Embarcadero at Sansome'}, {'name': '2nd at Townsend'}, {'name': '2nd at South Park'}, {'name': 'Steuart at Market'}]