About: http://webisa.webdatacommons.org/205022149

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	Each volume attempts to explain tough topics in astronomy that baffle teachers all the time, such as solar and lunar eclipses, galaxies, nebulae, quasars, asteroids and the asteroid belt, and supernovas.
http://www.w3.org/ns/prov#wasQuotedFrom	nsta.org