About: http://webisa.webdatacommons.org/108517747

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	So for now it appears to be sound when arrived at situationally from other d4 openings, as a reaction to certain types of commitments that Black makes.
http://www.w3.org/ns/prov#wasQuotedFrom	chess.com