<http://webisa.webdatacommons.org/prov/158147913>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/390105251> .
<http://webisa.webdatacommons.org/390105251>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/390105251>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/390105251>	<http://www.w3.org/ns/prov#value>	"such a manner as to enable the space to be open between adjacent pairs of irradiators as for example, the pairs 21, 25; 22,26; 23,27 and 24,28." .