_:vb50807171	<http://www.w3.org/ns/r2rml#column>	"lon" .
_:vb50807170	<http://www.w3.org/ns/r2rml#objectMap>	_:vb50807171 .
_:vb50807169	<http://www.w3.org/ns/r2rml#constant>	<http://rs.tdwg.org/dwc/terms/decimalLongitude> .
_:vb50807170	<http://www.w3.org/ns/r2rml#predicateMap>	_:vb50807169 .