@prefix pr: <http://www.wikidata.org/prop/reference/> .
@prefix wdref: <http://www.wikidata.org/reference/> .

wdref:51cf2396aaa61fd036aa863cd6d90abdf90aeb72 pr:P854 <http://demo.istat.it/ricostruzione2013/index.php?lingua=ita> .