About: http://webisa.webdatacommons.org/272233732

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	There is no such thing as negative mass, even when talking about $\a$
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com