<http://data.silknow.org/timespan/1840_1849/end>	<http://www.w3.org/2006/time#inXSDDate>	"1849"^^<http://www.w3.org/2001/XMLSchema#gYear> .
<http://data.silknow.org/timespan/1840_1849/end>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/time#Instant> .