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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	Snow-covered vents can lead to carbon monoxide exposure. both of the above Make sure that all of your vents, including your furnace, water heater and dryer vents, are free from snow.
http://www.w3.org/ns/prov#wasQuotedFrom	howstuffworks.com