For each station, return its longitude and the average duration of trips that started from the station.
SELECT T1.name ,  T1.long ,  avg(T2.duration) FROM station AS T1 JOIN trip AS T2 ON T1.id  =  T2.start_station_id GROUP BY T2.start_station_id
SELECT T1.name ,  T1.long ,  avg(T2.duration) FROM station AS T1 JOIN trip AS T2 ON T1.id  =  T2.start_station_id GROUP BY T2.start_station_id
[{'name': 'San Jose Diridon Caltrain Station', 'long': -121.90178200000001, 'avg(T2.duration)': 544.7611940298508}, {'name': 'San Jose Civic Center', 'long': -121.888979, 'avg(T2.duration)': 885.0}, {'name': 'Santa Clara at Almaden', 'long': -121.894902, 'avg(T2.duration)': 378.28}, {'name': 'Adobe on Almaden', 'long': -121.8932, 'avg(T2.duration)': 980.0714285714286}, {'name': 'San Pedro Square', 'long': -121.894074, 'avg(T2.duration)': 840.225}, {'name': 'Paseo de San Antonio', 'long': -121.88694299999999, 'avg(T2.duration)': 529.0909090909091}, {'name': 'San Salvador at 1st', 'long': -121.88583100000001, 'avg(T2.duration)': 682.3333333333334}, {'name': 'Japantown', 'long': -121.89471499999999, 'avg(T2.duration)': 1230.655172413793}, {'name': 'San Jose City Hall', 'long': -121.886995, 'avg(T2.duration)': 1123.4}, {'name': 'MLK Library', 'long': -121.88566000000002, 'avg(T2.duration)': 810.5416666666666}, {'name': 'SJSU 4th at San Carlos', 'long': -121.88389099999999, 'avg(T2.duration)': 711.7777777777778}, {'name': 'St James Park', 'long': -121.88993700000002, 'avg(T2.duration)': 616.4}, {'name': 'Arena Green / SAP Center', 'long': -121.900084, 'avg(T2.duration)': 608.8333333333334}, {'name': 'SJSU - San Salvador at 9th', 'long': -121.877349, 'avg(T2.duration)': 3597.095238095238}, {'name': 'Franklin at Maple', 'long': -122.226904, 'avg(T2.duration)': 3909.0}, {'name': 'Redwood City Caltrain Station', 'long': -122.23208899999999, 'avg(T2.duration)': 2643.871794871795}, {'name': 'Redwood City Public Library', 'long': -122.227424, 'avg(T2.duration)': 741.0}, {'name': 'Stanford in Redwood City', 'long': -122.20328799999999, 'avg(T2.duration)': 979.0666666666667}, {'name': 'Redwood City Medical Center', 'long': -122.223492, 'avg(T2.duration)': 555.4}, {'name': 'Mountain View City Hall', 'long': -122.081896, 'avg(T2.duration)': 563.0333333333333}, {'name': 'Mountain View Caltrain Station', 'long': -122.07671299999998, 'avg(T2.duration)': 714.8062015503876}, {'name': 'San Antonio Caltrain Station', 'long': -122.10675800000001, 'avg(T2.duration)': 380.40909090909093}, {'name': 'Evelyn Park and Ride', 'long': -122.066553, 'avg(T2.duration)': 918.1315789473684}, {'name': 'San Antonio Shopping Center', 'long': -122.10833799999999, 'avg(T2.duration)': 667.5925925925926}, {'name': 'Castro Street and El Camino Real', 'long': -122.083678, 'avg(T2.duration)': 1082.7142857142858}, {'name': 'Rengstorff Avenue / California Street', 'long': -122.099076, 'avg(T2.duration)': 699.7}, {'name': 'Palo Alto Caltrain Station', 'long': -122.164759, 'avg(T2.duration)': 1653.3255813953488}, {'name': 'University and Emerson', 'long': -122.16309299999999, 'avg(T2.duration)': 2643.6}, {'name': 'California Ave Caltrain Station', 'long': -122.14280500000001, 'avg(T2.duration)': 1423.842105263158}, {'name': 'Cowper at University', 'long': -122.159504, 'avg(T2.duration)': 1164.1153846153845}, {'name': 'Park at Olive', 'long': -122.13777749999998, 'avg(T2.duration)': 872.2222222222222}, {'name': 'Powell Street BART', 'long': -122.408433, 'avg(T2.duration)': 1245.5836909871246}, {'name': 'Clay at Battery', 'long': -122.39997, 'avg(T2.duration)': 906.0827586206897}, {'name': 'Davis at Jackson', 'long': -122.398436, 'avg(T2.duration)': 1067.6629213483145}, {'name': 'Commercial at Montgomery', 'long': -122.402923, 'avg(T2.duration)': 524.774834437086}, {'name': 'Washington at Kearney', 'long': -122.40476699999999, 'avg(T2.duration)': 1497.7671232876712}, {'name': 'Post at Kearney', 'long': -122.403452, 'avg(T2.duration)': 825.1928571428572}, {'name': 'Embarcadero at Vallejo', 'long': -122.398525, 'avg(T2.duration)': 1817.221649484536}, {'name': 'Spear at Folsom', 'long': -122.39063700000001, 'avg(T2.duration)': 655.7166666666667}, {'name': 'Harry Bridges Plaza (Ferry Building)', 'long': -122.394203, 'avg(T2.duration)': 1802.6721991701245}, {'name': 'Embarcadero at Folsom', 'long': -122.391034, 'avg(T2.duration)': 938.7894736842105}, {'name': 'Embarcadero at Bryant', 'long': -122.38801299999999, 'avg(T2.duration)': 766.0746268656717}, {'name': 'Temporary Transbay Terminal (Howard at Beale)', 'long': -122.39464299999999, 'avg(T2.duration)': 535.0488372093023}, {'name': 'Beale at Market', 'long': -122.39708600000002, 'avg(T2.duration)': 752.6637554585153}, {'name': '5th at Howard', 'long': -122.40512700000001, 'avg(T2.duration)': 551.4051282051282}, {'name': 'San Francisco City Hall', 'long': -122.41823500000001, 'avg(T2.duration)': 1774.6315789473683}, {'name': 'Golden Gate at Polk', 'long': -122.418603, 'avg(T2.duration)': 734.3861386138614}, {'name': 'Embarcadero at Sansome', 'long': -122.40323400000001, 'avg(T2.duration)': 1630.0022675736961}, {'name': '2nd at Townsend', 'long': -122.39028799999998, 'avg(T2.duration)': 905.3340611353711}, {'name': '2nd at Folsom', 'long': -122.39623600000002, 'avg(T2.duration)': 399.6787330316742}, {'name': 'Howard at 2nd', 'long': -122.39810800000001, 'avg(T2.duration)': 414.51173708920186}, {'name': '2nd at South Park', 'long': -122.392738, 'avg(T2.duration)': 512.8461538461538}, {'name': 'Townsend at 7th', 'long': -122.402717, 'avg(T2.duration)': 568.9297752808989}, {'name': 'South Van Ness at Market', 'long': -122.418954, 'avg(T2.duration)': 912.8475609756098}, {'name': 'Market at 10th', 'long': -122.41738500000001, 'avg(T2.duration)': 1139.6389891696751}, {'name': 'Yerba Buena Center of the Arts (3rd @ Howard)', 'long': -122.40101399999999, 'avg(T2.duration)': 561.7394957983194}, {'name': 'San Francisco Caltrain 2 (330 Townsend)', 'long': -122.39546999999999, 'avg(T2.duration)': 725.3219284603422}, {'name': 'San Francisco Caltrain (Townsend at 4th)', 'long': -122.39526000000001, 'avg(T2.duration)': 801.9405320813771}, {'name': 'Powell at Post (Union Square)', 'long': -122.408499, 'avg(T2.duration)': 765.4458598726114}, {'name': 'Civic Center BART (7th at Market)', 'long': -122.411748, 'avg(T2.duration)': 1276.7208121827412}, {'name': 'Grant Avenue at Columbus Avenue', 'long': -122.40724499999999, 'avg(T2.duration)': 1423.375}, {'name': 'Steuart at Market', 'long': -122.394434, 'avg(T2.duration)': 890.9441964285714}, {'name': 'Mechanics Plaza (Market at Battery)', 'long': -122.399051, 'avg(T2.duration)': 655.2933333333333}, {'name': 'Market at 4th', 'long': -122.40496599999999, 'avg(T2.duration)': 1664.8505338078292}, {'name': 'Market at Sansome', 'long': -122.400811, 'avg(T2.duration)': 786.4408284023668}, {'name': 'Santa Clara County Civic Center', 'long': -121.90573300000001, 'avg(T2.duration)': 862.4666666666667}, {'name': 'Broadway St at Battery St', 'long': -122.40086200000002, 'avg(T2.duration)': 1044.7237569060774}, {'name': 'Mezes Park', 'long': -122.23623400000001, 'avg(T2.duration)': 253.33333333333334}, {'name': 'Ryland Park', 'long': -121.89561699999999, 'avg(T2.duration)': 556.0}]