About: http://webisa.webdatacommons.org/73071092

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	A healthy immune system reacts to danger signals -- from microorganisms such as bacteria and viruses, or from the body's own rogue cells, such as cancer cells.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com