About: http://webisa.webdatacommons.org/444286104

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	These normally harmless environmental substances are known as allergens when they provoke symptoms such as nasal congestion and sneezing, itching or swelling, rashes, digestive disturbances, or full-blown asthma.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com