About: http://webisa.webdatacommons.org/449038101

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	Many silica-rich magmas reach the surface with high contents of water, carbon dioxide, and other gases, and violently spew out lava as airborne pumice and ash.
http://www.w3.org/ns/prov#wasQuotedFrom	pbslearningmedia.org