<http://webisa.webdatacommons.org/prov/516202463> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/19770391> . <http://webisa.webdatacommons.org/19770391> <http://www.w3.org/ns/prov#wasQuotedFrom> <sjsu.edu> . <http://webisa.webdatacommons.org/19770391> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/299094367> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/19770391> . <http://webisa.webdatacommons.org/19770391> <http://www.w3.org/ns/prov#value> "where n is a positive integer and h is Planck's constant divided by 2??." .