About: http://webisa.webdatacommons.org/291978141

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However, metals such as tellurium and bismuth from which the recording layer is produced have toxicity to some extent, and therefore full care must be taken in handling.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com