About: http://webisa.webdatacommons.org/138343257

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	They represent the notes G, D, A, and E. Strings are most commonly made of a steel or perlon core (perlon is a substance similar to nylon) wrapped in a metal such as aluminium or silver.
http://www.w3.org/ns/prov#wasQuotedFrom	instrumentalsavings.com