// Examples 15a and 15b demonstrate the use of the $unwind stage
// in an aggregation pipeline.
// In this version the Artist array is unwound.  
use moma2;
db.Artworks.aggregate( [
 { $match : { "Title" : "Hanselmann House, Fort Wayne, Indiana"}},
 { $project : { "Title":1, "Artist" : 1}},
 { $unwind : "$Artist" }
]);