Table for the 4 triples with object "1829-07-23" sorted by label

Subject	Predicate
mdb:Harmonie (1829-07-23)	mdb:datum
mdb:kapitein: Patjer, Wicher Wichers	mdb:datum
mdb:kok: Bartelds, Barteld Writsers	mdb:datum
mdb:stuurman: Kate, ten, Jan Jans	mdb:datum