<http://webisa.webdatacommons.org/31031860>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/93794634>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31031860> .
<http://webisa.webdatacommons.org/31031860>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/467532291>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31031860> .
<http://webisa.webdatacommons.org/31031860>	<http://www.w3.org/ns/prov#value>	"Various devices have been employed to measure the size and/or concentration of small colloidal particles, such as smoke, dust, smog, pollen and the like, in air or other fluids." .
<http://webisa.webdatacommons.org/prov/374773145>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/31031860> .