Table for the 4 triples with object "1843-01-21" sorted by label

Subject	Predicate
mdb:kok: Schuur, Hindrik Willems	mdb:datum
mdb:Marchiena (1843-01-21)	mdb:datum
mdb:persoonscontract-veen_veen-1843-2-66125-Berend_Egberts_Boll	mdb:datum
mdb:schipper: Kolk, Dethmer Boukes	mdb:datum