About: http://webisa.webdatacommons.org/213938140

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	WebMD says that for symptoms such as eyestrain, blurred vision, headaches, increased sensitivity to bright light, tired eyes or difficulty sustaining attention, eye exercises may be affective.
http://www.w3.org/ns/prov#wasQuotedFrom	safetyglassesusa.com