About: http://webisa.webdatacommons.org/389940065

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Careful chemical monitoring is necessary because air temperature, frequency of use, and other factors can impact chlorine and pH levels.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com