In your database there is a collection named trips with the following document structure: { '_id': ObjectId("572bb8222b288919b68abf6d"), 'trip_duration': 858, 'start_station id': 532, 'end_station_id': 401, 'bike_id': 17057, 'start_station_location': { type: 'Point', coordinates: [ -73.960876, 40.710451 ] }, 'end_station_location': { type: 'Point', coordinates: [ -73.98997825, 40.72019576 ] }, 'start_time': ISODate("2016-01-01T00:09:31.000Z"), 'stop_time': ISODate("2016-01-01T00:23:49.000Z") } How can you extract all trips from this collection ended at stations that are to the west of the -73.5 longitude coordinate?