: valueUrlhttp://www.w3.org/ns/csvw# Create a prefix for http://www.w3.org/ns/csvw# Hit Enter to save Double click to create a prefix | : P49Yhttp://reference.data.gov.uk/id/gregorian-interval/1890-01-01T00:00:00/ Create a prefix for http://reference.data.gov.uk/id/gregorian-interval/1890-01-01T00:00:00/ Hit Enter to save Double click to create a prefix | iisgr:hiscam_l/provenance/77865fd8/2021-02-03T22:59 |