Table for the 4 triples with object "1879-80" sorted by label

Subject	Predicate
mdb:Bouwina (1879-06-25)	mdb:bronid
mdb:kapitein: Middel, Thomas (uit Appingedam (NL))	mdb:bronid
mdb:kok: Mol, Jan (uit Groningen (NL))	mdb:bronid
mdb:matroos: Smit, Jan (uit Warffum)	mdb:bronid