<http://webisa.webdatacommons.org/prov/415703558>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/334637260> .
<http://webisa.webdatacommons.org/334637260>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/334637260>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<unl.edu> .
<http://webisa.webdatacommons.org/334637260>	<http://www.w3.org/ns/prov#value>	"Barn Swallows and Cliff Swallows nesting on structures - Observations and preliminary trials in Nebraska and other states indicate that lines spaced about 6 to 12 inches apart prevent nesting on structures." .