Table for the 4 triples with object "1881-50" sorted by label

Subject	Predicate
mdb:Albertha Romelingh (1881-05-03)	mdb:bronid
mdb:kapitein: Kaizer, Jan Willem (uit Farmsum (NL))	mdb:bronid
mdb:kok: Penning, Hindrik (uit Noordbroek (NL))	mdb:bronid
mdb:lichtmatroos: Post, Tonnis (uit Warffum (NL))	mdb:bronid