: O31_has_validity_time-spanhttp://www.cidoc-crm.org/extensions/crmsci/ Create a prefix for http://www.cidoc-crm.org/extensions/crmsci/ Hit Enter to save Double click to create a prefix | has validity time-span @en | : defaulthttps://triplydb.com/cidoc/crmsci-2-0/graphs/ Create a prefix for https://triplydb.com/cidoc/crmsci-2-0/graphs/ Hit Enter to save Double click to create a prefix |