Table for the 4 triples with object "a" sorted by label

Subject	Predicate
lp_eu:2001-07-03-Speech-2-259	lpv:unclassifiedMetadata
lp_eu:2001-10-03-Speech-3-121	lpv:unclassifiedMetadata
lp_eu:2007-06-06-Speech-3-054	lpv:unclassifiedMetadata
lp_eu:2007-12-12-Speech-3-037	lpv:unclassifiedMetadata