About: http://webisa.webdatacommons.org/119984409

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	Symptoms such as tightening of the chest and difficulty in breathing are not always continuously present, but can be 'triggered' by chemicals, pollution, pollen, animal hair, tobacco smoke or stress.
http://www.w3.org/ns/prov#wasQuotedFrom	irishhealth.com