About: http://webisa.webdatacommons.org/390074526

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	Used to sometimes use the old Atari trackballs (the pool ball size giant clunky things) back in the mid 90s, but the gritting up was a problem.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org