vcard

http://www.w3.org/2006/vcard/ns# link to namespace URI +1+1

http://www.w3.org/2001/vcard-rdf/3.0# link to namespace URI +1+1

http://www.w3.org/2018/vcard-new/1# link to namespace URI +1+1

http://127.0.0.1:3030/cycu.edu.tw/123# link to namespace URI +1+1

Add alternative URI
ttl xml rdfa sparql txt json jsonld vann | lov | prefix.cc