About: http://webisa.webdatacommons.org/211259943

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	The Uptime Institute defines and certifies four operator classes (Tier Levels I to IV), covering elements such as power supply, air-conditioning systems, and the corresponding control technology.
http://www.w3.org/ns/prov#wasQuotedFrom	lightreading.com