About: http://webisa.webdatacommons.org/183652542

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	Comets are made mostly of ice, and asteroids mostly rock or iron???but asteroids often contain a fair amount of ice as well.
http://www.w3.org/ns/prov#wasQuotedFrom	time.com