About: http://webisa.webdatacommons.org/158818121

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	There are of course engineering problems - to sustain entanglement for a lot of time (to get quantum computers) and to solve particular algorithmic and other problems to make the machinery more useful.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com