Table for the 4 triples with object "1840-57" sorted by label

Subject	Predicate
mdb:Geerdina (1840-06-25)	mdb:bronid
mdb:kapitein: Schaap, Albert Harms	mdb:bronid
mdb:kok: Boontje, Gelke Kornelis	mdb:bronid
mdb:stuurman: Blaauw, Hindrik Tiddes	mdb:bronid