<http://webisa.webdatacommons.org/270909161>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<oreilly.com> .
<http://webisa.webdatacommons.org/270909161>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/127266238>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/270909161> .
<http://webisa.webdatacommons.org/270909161>	<http://www.w3.org/ns/prov#value>	"Sources adjacent to a main sequence star similar to our sun (other types of stars are thought to be unlikely to support habitable planets)" .