Table for the 5 triples with object "104a" sorted by label

Subject	Predicate
?:Eleven Variations on a Theme by Glinka	ns2:opus
?:Prelude in B-flat major	ns2:opus
?:Prelude in B minor	ns2:opus
?:Prelude in D major	ns2:opus
?:Three Preludes for piano	ns2:opus