Hi!
out of curiosity, can you give an example of triples
that do not
originate from a single wikidata item / property?
All references and values can be shared between items. E.g. if two items
refer to the same date, they will refer to the same value node. Same if
they have a reference with same properties - i.e. one URL to the same
address.
These nodes do not have their own documents - since in Wikibase and
Wikidata it's not possible to address individual values/references - but
they are not linked to a single entity.
--
Stas Malyshev
smalyshev(a)wikimedia.org