About: http://webisa.webdatacommons.org/355292269

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	In a completed phantom, the shell is filled with an NMR-active substance, preferably a liquid such as one of the glycerine, copper sulfate, or magnesium chloride solution.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca