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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	Broadly defined, ventilation is a method of controlling the environment with air flow. ??? ???Safety and Health Topic
http://www.w3.org/ns/prov#wasQuotedFrom	crosswords911.com