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<http://webisa.webdatacommons.org/prov/455527392>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/2156351> .
<http://webisa.webdatacommons.org/2156351>	<http://www.w3.org/ns/prov#value>	"Volunteers pay for their own transportation to the project site and for their own food and supplies, such as a tent." .
<http://webisa.webdatacommons.org/2156351>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<washingtonpost.com> .