About: http://webisa.webdatacommons.org/235016457

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	My question is, how is it possible to disambiguate between the effects of second-hand smoke and other, similar environmental factors such as air pollution, candles, incense, barbecue grills, etc.?
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.cz