<http://webisa.webdatacommons.org/431306891>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<eurekalert.org> .
<http://webisa.webdatacommons.org/431306891>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/428171809>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/431306891> .
<http://webisa.webdatacommons.org/431306891>	<http://www.w3.org/ns/prov#value>	"To carry out practical work, professionals such as geometricians and field and land surveyors were used." .
<http://webisa.webdatacommons.org/prov/322109553>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/431306891> .