About: http://webisa.webdatacommons.org/112231355

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	Solar cells such as a silicon solar cell, a gallium arsenide (GaAs) solar cell, and an indlum phosphide (InP) solar cell have so far been put into practice.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com