About: http://webisa.webdatacommons.org/244295431

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	coma - a dense cloud of water, carbon dioxide, and other gases spewed off by the evaporating nucleus as the comet nears the Sun;
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov