<http://webisa.webdatacommons.org/prov/25404316>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/277126216> .
<http://webisa.webdatacommons.org/277126216>	<http://www.w3.org/ns/prov#value>	"Ultrasound humidifiers tend to leave a fine white dust about your rooms, as the tiny droplets they dispense evaporate and leave behind calcium carbonate and other minerals present in the water." .
<http://webisa.webdatacommons.org/277126216>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/277126216>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<medcentral.org> .