We have a restaurants collection with the following document structure: { _id: ObjectId("5eb3d668b31de5d588f42a7d"), address: { building: '605', coord: [ -74.0060152, 40.7372653 ], street: 'Hudson Street', zipcode: '10014' }, cuisine: 'French', grades: [ { date: ISODate("2014-06-30T00:00:00.000Z"), grade: 'A', score: 10 }, { date: ISODate("2013-05-20T00:00:00.000Z"), grade: 'A', score: 13 }, { date: ISODate("2012-12-11T00:00:00.000Z"), grade: 'A', score: 9 } ], name: 'La Ripaille Restaurant' } We need to use Aggregation Framework to calculate the total number of restaurants for top 5 cuisine (sorted in descending order by the number of restaurants). Expected output: [ { _id: 'American', total_restaurants: 6183 }, { _id: 'Chinese', total_restaurants: 2418 }, { _id: 'Cafao/Coffee/Tea', total_restaurants: 1214 }, { _id: 'Pizza', total_restaurants: 1163 }, { _id: 'Italian', total_restaurants: 1069 } ] Which pipeline should you use?