Memorial

http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttps://prismdb.takanakahiko.me/prism-schema.ttl#Song
http://www.w3.org/2000/01/rdf-schema#labelMemorial
https://prismdb.takanakahiko.me/prism-schema.ttl#nameMemorial