About: http://webisa.webdatacommons.org/128949895

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	Even a lot of experienced players aren???t aware of the fact that the reopening double is an integral part of the negative double system.
http://www.w3.org/ns/prov#wasQuotedFrom	bridge-club.org